I like to think I've very good with my money. I really only buy things that I cannot obtain otherwise. Let's see:
Cigarettes/Coffee/Junk Food/Soda - I don't require any of those.
Meals - I'm on a meal plan so it's already paid for and my meals are always simple: rice, meat, fruits, vegetables. If I do eat out, I know a place that has a shitton of food for just 5 bucks and its delicious. I also only drink water because juice is available at the dining hall and I don't drink soda.
Books - I read them from the library. I only buy books when they are extremely well written or otherwise unobtainable: The Stand, The Dark Tower Series, A Canticle for Leibowitz, etc.
Movies - If I do watch movies, it's only with friends and/or if they get good ratings. Otherwise, I just wait until they come out and watch them online.
Games: No MMO, also torrents.
DnD - Spent 5 dollars on a miniature, the rest of the books I have in .pdf format.
Rent/Kids/Etc. - College student. When I'm done I'll probably live with my parents for a while. The house will be lonely without me and I think they'll enjoy my company, at least, until I can buy a place of my own.
Gas - College student, everything is within walking distance or I use a bus pass.
Clothing - I'm wearing the clothes my father wore to work when he was younger. Unfortunately, most of his shirts are bright colors and I favor blues and blacks. All my other clothes are from Chinatown so they're dirt cheap.
Hobbies: I shoot guns, which themselves are quite expensive. I do a lot of reading before hand and spend quite a bit of time considering which ones to buy though, so I don't burn through cash just walking in and picking out one. The ones I shoot the most often are my .22's, so ammo is dirt cheap. 7.62x54R and 9mm are about .20 cents a round, but that's about as low as you'll find them.
I have no job currently, but that should probably change in the near future.