Best tips you've learned from the Budget Board

[mom0299]

I have learned so many great things from the Budget Board. It has helped me really get on track with my finanaces. Some of the best things I've learned about are pay back sites like inboxdollars, ebates, and mypoints. Just recently I learned about the sites plasticjungle and giftcardrescue that will buy gift cards you don't want or you can purchase gift cards for less than face value.
These great finds got me wondering about what I've missed. What are some of the best things you've discovered on the Budget Board?