Say you pass a store, go in and make an impulse buy then after leaving realize they had the thing you need? What is the last thing you forgot to buy. I just bought some beer at Rite-Aid and didn't think of the batteries until after I passed an electronics store. I went in one a little bit down that was like a cell phone store that had some AAA and i think C but no AA, of course they didn't have the most common type of battery.
JalapeƱo peppers. I got home and realized I did not get them and had to go back out for them as I was making salsa and needed them. Ironically they were even on my list.
Yesterday I got a call from our local bookstore that the book I ordered came in. I was going to pick it up when I was out walking the dog yesterday afternoon but did not think of it again until I was already home.... Maybe I will remember to go get it today. (maybe not... will see)
Bought a bag of ice the other day... Forgot to grab it from the machine on the way out of the store. :/
Cat food I hate getting all the way home from work only to remember that I was supposed to stop at the store but didn't. I live way out in the woods, not many stores close by.
Actually, I am always forgetting to buy batteries... Last time I forgot to get butter. Surely ruined my breakfast next morning