Keep a well-stocked pantry and freezer. Peruse the weekly grocery specials, and stock up on items you use regularly. Check out marked down meats and sales on meat and fish.

Here are some of the things I buy in bulk (or at least 4-6 at a time):

Canned (or bottled) items:
Tomatoes
Olives
Mushrooms
Pimiento
Soups
Green beans
Prepared Spaghetti sauce
Black eyed peas
Canned Tuna, Salmon
Kidney beans
Green Chiles
Pineapple chunks
Evaporated Milk
Artichoke Hearts

Various Pastas, Noodles, Macaroni

Rice

Sauces and Condiments (jam, jellies, Worcestershire sauce, ketchup, etc)

Cereals
Cous Cous

Olive Oil

For the freezer:

Veggies - love the mixed California veggies - great for cooking or side dish
Meats and Fish (shrimp - always keep bags of it)
Lean Cuisines - various types
Waffles/Pancakes
Cole's Texas Toast (ok - some carbs now and then are alright!!!!)

Produce - buy what is on special - create meals plans around the specials

If you continually buy these items in quantity, you will be able to make many different dishes straight from the pantry and freezer, and you will substantially cut your grocery bill.

Cook at home. I cook nearly every day. I am a big fan of slow cookers, roasters, rice cooker, electric skllet, etc. Have some nice casseroles of various sizes (I like Corning French White) and make casseroles ahead and freeze, if needed.

Cutting out expense on groceries can substantially impact your budget- and leave you w/ more discretionary funds (or $$ to pay down debt!!!)

Learn to sew - at least enuff to do some simple alterations

Will post some more ideas if I think of anything worth sharing!

Great thread - hope others will post ideas . . .