This is exactly why I became intrigued with couponing and started a couponing blog. I am here to tell you that it really does work and you can easily save 40-50% or more from your monthly grocery budget. Does it take a little time and effort? Yes, but it is a lot easier to do a few little things than it is to get a raise and there are lots of short cuts. It is also something you can start doing right away and it doesn't typically cost anything.
On my blog I go through the sale papers and see what is on sale. Then I locate the coupons that are available either from the Sunday newspaper inserts or printable or even some eCoupon sites. I publish the "matchups" so that people can easily see what they need and how to save on those items. When you match these up it is astonishing how much you can save. Especially when stores double coupons or they have Buy One, Get One Free sales.
Contrary to popular belief, you do not need tons of coupons to save. I get my parent's Sunday inserts and I either buy 1 Sunday paper for myself, or I order coupon inserts online for about $1 a piece. I have a family of 2, so I usually only require about 2 copies of each weekly insert to score big savings. I don't dive in dumpsters or buy 12 newspapers a week. That is not practical.
Also, do not overlook the drug stores like CVS, Walgreens and Rite Aid that offer cash off your next purchase coupons for the purchase of certain items. Each week I buy things I need that are on sale, use coupons to reduce the price further and get coupons for money off for the next week. It is not uncommon for me to save 90% on a drug store shopping trip.
Sorry to go on and on, but I hate to see anyone paying top dollar for groceries and items their families need whether they can afford to or not. You just don't have to.