light popcorn is filling and relatively low in calories.
when i need salty-crunch, pretzels work...i just have to make sure that I count them out into a bowl and leave the bag in the cabinet.
the baked lays/ruffles, etc make better choices when you're looking for chips.
goldfish are also baked, so better for you.
cheerios can be added in with raisins, pnuts and pretzels for a "trail mix"

of course, yogurt and fruit make good healthy choices but I thought those were a little obvious.

and on the topic of nuts, we have been using shot glasses for nuts - they hold about an ounce - but it looks like a bunch of drunks live here, though... hahaha