1) If your plastic bowls or dishes smell of oil or spices, 
simply make a paste of baking soda and water and rub all over 
the surface. Let set overnight then rinse well.

2) If your cutting board smells from onions, garlic or even 
fish, pour on a little vinegar, let it set a minute or two, 
wipe, rinse, and the odor should be gone. If your hands have 
also absorbed the odor, rub them together with vinegar and rinse.