How to keep code from getting messy?

[Scizor]

Hi guys! So I'm working on a program to help me close the register, divvy up credit card tips, compare till numbers, exc... its pretty messy. There are just so many values to store, convert, and compare! I'm really just ehhh. Should I have been using classes and objects this whole time? I shied away from that because I'm not quite comfortable with it yet.

#include<iostream>

using namespace std; 

int main()
{
	int response;
	int response1;
	int response2;
	int response3;
	bool bvalue = false;
	double cashtips = 0.0;
	int tipsplit = 0;
	double tipdiv = 0.0;
	int fone, ffiv, ften, ftwe, ffif, fhun, fpen, fnic, fdim, fqua, sone, sfiv, sten, stwe, sfif, 
		shun, spen, snic, sdim, squa, roll, tone, tfiv, tten, ttwe, tfif, thun, tpen, tnic, tdim, 
		tqua;
	double fones, ffivs, ftens, ftwes, ffifs, fhuns, fpens, fnics, fdims, fquas, sones, sfivs, stens, 
		stwes, sfifs, shuns, spens, snics, sdims, squas;
	double precash = 0.0;
	double precashsroll = 0.0;
	int swinput = 0;
	double cctips = 0.0;
	double deposit = 0.0;
	double countedcctips = 0.0;
	double registertotal = 0.0;

	cout << "\t\t\t *_*_* End Of Night *_*_* \n" << endl;
	cout << "Note: 1 = YES\n      2 = NO\n\nThis program does not guard against funky input! If you enter an 'a'\nwhere there should be a number, the program will CRASH! Use at your\nown risk.\n\n\n";
	do{
		cout << "Please enter the cash tips: ";
		cin >> cashtips;
		cout << "Is this the correct amount? " << cashtips << endl;
		cout << "(1/2):";
		cin >> response;
	} while (response == 2);

	cout << "How many people are splitting the tips?: ";
	cin >> tipsplit;

	tipdiv = cashtips / tipsplit;

	cout << "Proper amount each: " << tipdiv << endl;
	cout << "\nPlease enter the cash register amounts.\n";
	cout << "Ones:";
	cin >> fone;
	cout << "Fives:";
	cin >> ffiv;
	cout << "Tens:";
	cin >> ften;
	cout << "Twenties:";
	cin >> ftwe;
	cout << "Fifties:";
	cin >> ffif;
	cout << "Hundreds:";
	cin >> fhun;
	cout << "Pennies:";
	cin >> fpen;
	cout << "Nickels:";
	cin >> fnic;
	cout << "Dimes:";
	cin >> fdim;
	cout << "Quarters:";
	cin >> fqua;
	cout << "Rolled (enter amount of money total):";
	cin >> roll;

	cout << "Are you sure these totals are correct? You will not be able to go back if you're incorrect now (1/2):";
	cin >> response1;
	if (response1 == 1)
	{
		cout << "";
	}
	else if (response1 == 2)
	{
		cout << "Choose the value you would like to change.\n 1. ones\n 2. fives\n 3. tens\n 4. twenties\n 5. fifties\n 6. hundreds\n";
		cout << " 7. pennies\n 8. nickels\n 9. dimes\n 10. quarters\n 11. rolled\n 12. I lied, everythings fine\n";

		do{
			cin >> swinput;
			switch (swinput) {
			case 1:
				cout << "Ones:";
				cin >> fone;
				break;
			case 2:
				cout << "Fives:";
				cin >> ffiv;
				break;
			case 3:
				cout << "Tens:";
				cin >> ften;
				break;
			case 4:
				cout << "Twenties:";
				cin >> ftwe;
				break;
			case 5:
				cout << "Fifties:";
				cin >> ffif;
				break;
			case 6:
				cout << "Hundreds:";
				cin >> fhun;
				break;
			case 7:
				cout << "Pennies:";
				cin >> fpen;
				break;
			case 8:
				cout << "Nickels:";
				cin >> fnic;
				break;
			case 9:
				cout << "Dimes:";
				cin >> fdim;
				break;
			case 10:
				cout << "Quarters:";
				cin >> fqua;
				break;
			case 11:
				cout << "Rolled: ";
				cin >> roll;
				break;
			default:
				cout << "\nAnd so we continue!" << endl;
				break;
			}

			cout << "\nChange something else? (1/2):";
			cin >> response2;


		} while (response2 == 1);
	}

	else
	{
		cout << "" << endl;
	}

	fones = fone;
	ffivs = ffiv * 5;
	ftens = ften * 10;
	ftwes = ftwe * 20;
	ffifs = ffif * 50;
	fhuns = fhun * 100;
	fpens = fpen * .01;
	fnics = fnic * .05;
	fdims = fdim * .1;
	fquas = fqua * .25;
	precash = fones + ffivs + ftens + ftwes + ffifs + fhuns + fpens + fnics + fdims + fquas + roll;
	precashsroll = fones + ffivs + ftens + ftwes + ffifs + fhuns + fpens + fnics + fdims + fquas;

	cout << "\nCASH ON HAND WITH ROLLED: " << precash << endl;
	cout << "\nCASH ON HAND MINUS ROLLED: " << precashsroll << endl;

	cout << "\nPlease enter the total credit card tips: ";
	cin >> cctips;
	cout << "\nPlease enter the register total: ";
	cin >> registertotal;

	if (registertotal == precash)
		cout << "register and COH are equal :)" << endl;
	else if (registertotal < precash)
		cout << "You are under by " << precash - registertotal << endl;
	else if (registertotal > precash)
		cout << "You are over by" << registertotal - precash << endl;
	else
	{
		cout << "Comparison failed." << endl;
	}
	


	
	do{
	cout << "Please enter the bills and coins taken out for cash tips: \n";
	cout << "Ones:";
	cin >> sone;
	cout << "Fives:";
	cin >> sfiv;
	cout << "Tens:";
	cin >> sten;
	cout << "Twenties:";
	cin >> stwe;
	cout << "Fifties:";
	cin >> sfif;
	cout << "Hundreds:";
	cin >> shun;
	cout << "Pennies:";
	cin >> spen;
	cout << "Nickels:";
	cin >> snic;
	cout << "Dimes:";
	cin >> sdim;
	cout << "Quarters:";
	cin >> squa;


	sones = sone;
	sfivs = sfiv * 5;
	stens = sten * 10;
	stwes = stwe * 20;
	sfifs = sfif * 50;
	shuns = shun * 100;
	spens = spen * .01;
	snics = snic * .05;
	sdims = sdim * .1;
	squas = squa * .25;
	countedcctips = sones + sfivs + stens + stwes + sfifs + shuns + spens + snics + sdims + squas; 

}while (countedcctips != cctips);

	deposit = registertotal - cctips - roll; 
	cout << deposit << endl;

	cout << "\t\t\tPRE-TIPS" << endl;
	cout << "Ones:";
	cout << fone << endl;
	cout << "Fives:";
	cout << ffiv << endl;
	cout << "Tens:";
	cout << ften << endl;
	cout << "Twenties:";
	cout << ftwe << endl;
	cout << "Fifties:";
	cout << ffif << endl;
	cout << "Hundreds:";
	cout << fhun << endl;
	cout << "Pennies:";
	cout << fpen << endl;
	cout << "Nickels:";
	cout << fnic << endl;
	cout << "Dimes:";
	cout << fdim << endl;
	cout << "Quarters:";
	cout << fqua << endl;
	cout << "Rolled:";
	cout << roll << endl;
	cout << "Cash on hand with rolled coins" << precash << endl;
	cout << "Cash on hand w/o  rolled coins" << precashsroll << endl;

	tone = fone - sone;
	tfiv = ffiv - sfiv;
	tten = ften - sten;
	ttwe = ftwe - stwe;
	tfif = ffif - sfif;
	thun = fhun - shun;
	tpen = fpen - spen;
	tnic = fnic - snic;
	tdim = fdim - sdim;
	tqua = fqua - squa;

	cout << "\t\t\tPOST-TIPS" << endl;
	cout << "Ones:";
	cout << tone << endl;
	cout << "Fives:";
	cout << tfiv << endl;
	cout << "Tens:";
	cout << tten << endl;
	cout << "Twenties:";
	cout << ttwe << endl;
	cout << "Fifties:";
	cout << tfif << endl;
	cout << "Hundreds:";
	cout << thun << endl;
	cout << "Pennies:";
	cout << tpen << endl;
	cout << "Nickels:";
	cout << tnic << endl;
	cout << "Dimes:";
	cout << tdim << endl;
	cout << "Quarters:";
	cout << tqua << endl;
	cout << "Rolled:";
	cout << roll << endl;
	cout << "Cash on hand post tips:" << precash - cctips << endl;
	cout << "Deposit: " << deposit; 
	cout << "\n\n";
	cout << "Total cash in register:" << registertotal << endl;
	cout << "Total credit card tips:" << cctips << endl;
	cout << "Total rolled coin value:" << roll << endl;
	cout << "Deposit: " <<deposit; 
	cout << "\n\n"; 

	cout << "Type 100 to exit program." << endl;
	do{
		cin >> response3; 
	} while (response3 != 100);

	return 0; 
}