I just rotate the few I have to the tools I am carrying for the day.
Every time I buy one, I gotta run out to buy a small screwdriver for the corkscrew. Doesn't matter if it's a vic or wenger, I just can't stand the sight of an empty corkscrew knowing I can fit another tool in there. (Image removed from quote.) I really should just buy a bag of them so I won't have to do it anymore. Anybody's the same?