Volunteered to do the shopping for the office Christmas party (and expense it, obv - I'll have the $ back by the end of the month, to pay for the credit card bill due end of next month).
Meant that I got to leave work an hour early to go to the 2 places I needed to run errands at anyway and didn't have time to make it to after work, plus, I get 2% cash back, plus the volume of wine purchases got me a 15% discount at the liquor store (so I added on the bottles we needed for holiday presents - yay 15% off), PLUS I can read ingredients before buying to make sure I'm not allergic to the ingredients in the party food. Minor $ savings, but major savings on time, hassle, and convenience.