We used to do all our grocery shopping at Walmart, but they are now high.
For the past couple of years I have noticed that when they raised prices, it was in 5c and 10c increments. Since last year, they don't raise prices often, but when they do, it's in 30c or more increments, no matter the base price.
A year ago, a two-pound tub of their cole slaw was $2.78, of a sudden it went to $3.48 and yesterday it was $3.78. Tuna fish can sizes now resemble those of cat food. Some toilet paper rolls have shrunk an inch or more in width and two-ply is closer to 1 1/2 ply.