Suggestions for families on cutting corners and saving money in today's recession?

Ok most of us are really facing difficult times right now. What are some things you are doing to save money?

I shop at dollar tree for all of my cleaners and toiletries.

please come up with one suggestion we really all need to work together now to survive.
Update: A lot of great Ideas,
Angel food is great!!!
I shop at Aldis, you actually pay 25% less on your food then you would at a regular store. but their ice cream isnt too good.
I love the Idea to close off the vents in the parts of your house not being used,
super Ideas everyone :)
12 answers 12