Great ideas so far!
Some other things we do. (Our grocery budget use to be over $150 a week too but since January I've been able to get it down to $85-$100 a week, family of 4, two school age kids).
We stopped buying.
Chips / Candy / Microwave popcorn ( I put 1/4 cup of popcorn seeds in a paper bag in the microwave instead for pennies.)
Any liquid except for milk and 100% pure juice. (no kool-aid. no pop. no crystal light. no bottled water)
We went down to eating meat twice a week.
We have breakfast for dinner at least once a week.
We bought our own waffle maker - much less then Eggo's and much tastier.
No cookies, cakes, muffins, pastries. If we want them, we bake them ourselves.
No prepackaged meals (We did this for environmental reasons but it saves money too.)
I try to buy our fruits and veggies at the local farmer's market.
I also bought More With Less .. a cookbook on how to eat well on less money. It paid for itself in the first month! What an inspiration!
More With Less