1. Your toothbrush.

2. Holy water.

3. Shopping carts.

4. Your computer keyboard.

5. Restaurant lemon wedges.

6. Movie theater seats (and, generally, public seating everywhere).

7. Swimming pools.

8. Your phone.

9. Your face.

10. Money.

11. Tanning beds.

12. Soda fountains.

13. Pretty much everything on an airplane.
