I like yogurt & fresh fruit, especially berries with Greek yogurt - either vanilla flavored, or plain with a bit of brown sugar or honey added in. The big cartons that are a quart (or I guess in other countries might come in 0.5 L or something, I have no idea) are pretty cost-efficient. Another good snack is carrots with hummus. Or some cheese and whole-wheat Ritz crackers, mmm. On another note, I did three pull-ups today (not pretty-looking ones, mind you) at the end of my workout and felt like a boss.