Get a little lunch box and throw an ice pack in there, and you'll be good to go for most of the day.
Celery & 1 tbs. peanut butter
Mixed nuts or almonds
Blueberries, Slice strawberries, 15 grapes
Triscuits w/cheez whiz
10 Animal crackers or 1 1/2 Graham crackers
2 breadstix about 11 carbs w/2 slices low fat Provolone