Soda

My mother is cheap, but also selfish. She obviously buys store brand everything, except sometimes when she buys things that only she is allowed to eat or drink. One time I went grocery shopping with her, and the Diet Coke was on sale such that it was actually cheaper than the Wal-Mart brand diet cola, but she didn't buy it. She said that she didn't want anyone getting used to the Diet Coke, so she would buy Diet Sam's Choice anyway. Her husband used to buy himself Diet Pepsi, which she would hoover and stick him with the Diet Whatever Crap She Bought(tm), so I think he stopped. Now that she's an empty-nester, she just buys Diet Pepsi, and sometimes even the more expensive Weight Watchers soda.