Mine was just out on the floor by the bike. (What? Your bike isn't in the middle of your living room?) It didn't taste bad and I just tried not to think about it. Also, since it was in the mid-70s (finally) and I only rode 5 miles, I only sipped a couple or three times.

I haven't had probs opening and closing it before. I knew it was really stiff and I had to apply a lot of pressure, but I never had enough trouble that I wondered if it was stuck until this morning, and they both are. Go figure.