Goggle cocktail... yum ...my prerace favorite.
Now that I'm tapering, I'm getting prepared for my tri in two days. Gulp. And I can't stand foggy googles. It's hard enough to see with everyone splashing around you and waves lapping your face; why add foggy goggles to the stress of the swim?
The local swimming shop owner gave me this great tip: Soak your goggles overnight in super concentrated soap water. I use Palmolive but any dish soap should do. Rinse REALLY well. And ta da! Your goggles will be fog- free for a month or two. At least mine are.
One other important tip: don't rub the inside of your goggles with your fingers. Ever. Finger-free zone for crystal-clear vision.