A few years back I stopped buying Disposable anything. No Paper plates, paper towels, or baggies. I use cloth napkins, I use white rags (18 for $3 at Walmart) in the place of paper towels, and I use containers instead of pastic bags.
Also, most of your cleaning supplies can be replaced with Vinegar and Baking Soda.
One of my favorite uses of Vinegar? It can be used in the Dishwasher in place of the blue rinse aid that costs a fortune.
Check of your local library rather than buying books, and even renting movies (many libraries have extensive DVD collections).
Check out your local freecycle (
www.freecycle.com ), a great way to recycle unneeded items, and to get items you can use for free.
The best thing about these ideas, are not only are they frugal, but they are also good for the environment.
Reduce. Reuse. Recycle.
(Just remember that you can go TOO far. Like my neighbor who sneaks around at 3 in the morning and digs through people's garbage. That's just creepy. )