The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test track. A tire graded 200 would last twice as long on the government test course under specified test conditions as one graded 100.
Most wine racks are designed to allow a wine to be stored on its side. The thinking behind this orientation is that the cork is more likely to stay moist and not dry out if it is kept in constant contact with the wine. Some wineries package their wines upside down in the box for much the same reason.
Just Add Water: A simple method in wine glasses is to just add water. Rinsing the wine glasses three or four times in hot water should be enough to remove all residual wine. And, placing the wine glasses upside down on a clean cloth, when finished, will help the wine glasses in their quest to air dry. A Touch of Soap: Adding just a drop of soap can help remove a wine glass with a stubborn wine residue.