Sure, you’ve heard of the “make a list and stick to it” tip when grocery shopping. It’s a great piece advice, and I usually keep it in mind. However, I also make sure to stock up on my favorite products when they go on sale. My husband and I plow through peanut butter and oatmeal like it’s our job, so when they go on sale, I make sure to buy them even if we haven’t run out yet. I know that we’ll use these items at some point, so I might as well stock up and save a little money.