Got this in email and thought it might be helpful.
Skin Lotion (17-25% left)
Tips: Store pump bottles top-up, squeeze bottles top-down. Tap firmly, add water and shake, or cut open (carefully).
Liquid Detergent (7-16% left)
Tips: Tilt push-button jugs or remove their extra cap and pour. Store smaller capped bottles upside down when almost empty.
Condiments (3-15% left)
Tips: Add a little water and shake. For mayo, use spatulas in assorted sizes.
Toothpaste (1-13% left)
Tips: Squeeze or bend tube as best you can, pull it over a counter's edge, or use a toothpaste squeezer, about $3.
from this article:
How much is left in that container?