This is the kind of feature I love: the Orlando Sentinel recently ran this "Reader to reader" article wherein the Sentinel's readers offer advice on how to control credit card debt. There's practical, sensible advice here that industry professionals like me often overlook when helping our clients.
The first respondent suggests treating credit cards like checks, recording each transaction in a checkbok register, charging only as much as you've got in your bank account. You might ask your bank if they've got a small register for debit cards; I got one years ago from Bank of America for my debit card, and I used to show it in seminars to promote the idea.
There's also a comment section--look in the "Talk About It" box on the right-hand side of the page--where other readers submit quick tips, and the consensus seems to be "don't use credit at all if you can get away with it." And if you must use credit, one or two credit cards are all any consumer really needs.
Good advice for coping with debt is everywhere; the trick is to understand that not all advice will work for everyone, and try to find the suggestions that will work best for you.