I am a regular shopper at Walmart and I can vouch for the fact that its prices are shooting up. This may backfire. I go elsewhere for those items whose prices I can beat: milk, meat, produce among others.
At my local 99cents store I buy canteloupe, small watermelon, dog treats, yogurt, cheese, raisins, soup, fresh veggies, apples, nuts, spices, chips, Arizona iced tea, frozen pancakes and waffles, low sodium black beans, salmon burgers, chocolate chip cookies, tuna, bagels, English muffins, candy, toothpaste, rubbing alcohol, paper plates, etc. If I had to do it, I think I could survive with ample protein and wide variety of food for under 5 bucks a day. Of course, going out to eat too often and going to sports bars during football season obliterates the food budget. If only the 99cents store sold ammunition. LOL