Cheese puffs. Generic brands only -thank you. For some reason, the cheaper they are, the more delicious. Oddly enough, generic brands typically have some bleu cheese in the mix - which adds a tartness that's simply delightful.
Others will do in a pinch, but these are my sweet staple. I keep them in the freezer to munch when I feel the urge. Oddly enough, my sister developed this same habit, with no communication on the idea. She prefers semi-sweet Tollhouse.
or
A special treat.