@Future D.O -
Personally, I rewarded myself with a new pair of comfy pants (on awesome sale) for MCAT day, play with my bugg dog, and watch Mr.Robot, my new fav show!!!!!
1. Organize things-like bookmark what needs done when your concentration improves, file your notes, etc. It's not studying, but it contributes to MCAT prep.
2. Do something to remember why you're doing this (like watch an episode of Boston EMS or Boston Trauma, or an old 24 Hours in A&E, or ORlive online).
3. Rest and eat protein rich foods
4. Read something funny
5. Browse your local library for something "fun".