GladWare containers are awesome for storing snacks. I weigh/measure out a whole bunch at once, and then grab a couple on my way to work each day. I always know exactly what I'm getting!
The little round ones are good for nuts and jerky, and the small rectangular ones are great for carrots.
I wash these in top rack of the dishwasher. They're still wet when they come out, so I just pile them up in a big bowl and let the water drip out of them. They stack together very nicely too!