If you can handle it, credit cards from some banks are the way to go now. I charge almost all that I can. Then pay it off at the end of the month.
The way I keep up with it is that when I buy something on a credit card, I put that down in the check book just as if I had written a check.
The reason is I get back 1% on everything and up to 5 % on some things, plus I can buy store gift cards from the bank at a discount.
Some stores give discounts if you charge using their credit cards. I think it is Lowes that gives 5% off now.