I just voted in the poll, and would like to add that I also use the Butler Creek scope covers on my binoculars as well. They're cheep insurance to protect the objective lenses from dust and scratches while you're making a belly crawl stalk. The objective lens covers come with two little tabs on them, and I just snip off the tab that would be on the inside area of the objective lens when they are in place. Also, a little liquid detergent helps slide them over the lens barrel, especially if your binos are rubber armored.

I only use the scope covers on the objective lens of my rifle scope too.