Fruit, fruit, fruit. I've decided that it's summer and I'm going to enjoy it seasonally. Watermelon, cherries, etc. If that's the worse thing I'm eating, well, then I'm doing pretty good.
I also don't think popcorn is the end of the world...if you're making it yourself and being mindful of how much you're eating. If the rest of your day is solid, then a little popcorn won't be that bad (unless, it's causing a lot of joint pain, in which case you may want to switch to homemade jerky or veggie chips, etc.).