We have been using Walmart Savings Catcher for a little over a year now and in that time we have saved $125.97. While that really isn't a huge savings, every little bit helps. It's super easy to do. Once you sign up at Savings Catcher you simply enter the TC# and date of purchase found at the bottom of your Walmart receipt within 7 days and wait while they look for lower prices. Or if you aren't in the technology dark ages like we are, there is an app for smartphones that probably makes the whole process even easier! It usually takes anywhere from 2-3 days for them to compare prices on eligible items with those of competitors (and at this point it's really only most grocery items, but not like meat or produce). Once they finish, you receive an email letting you know how much money you get back. I usually let the savings accumulate for a while and then redeem it to an e-gift card (which you can print out) when it reaches close to $20 and then use it towards my next purchase (which of course you can still enter that receipt as well). There is also a Bluebird card option, that apparently doubles whatever amount you save and I looked into that, back when we first started, which apparently works more like a debit card, but it seemed like more hassle than I wanted to deal with at the time. I'd like to know how others who have used this option feel about it.
I'd like to also check out Amazon Prime Pantry a little more, and see if any of the things that we buy regularly are any cheaper that way...maybe someday when I have some "spare" time!