I'm a new street rider. When I stop at a destination with my half helmet I stash it in my very handy hard pannier bag. But when I am out with my full face lid, I never know what to do with it after I park. If it's just a quick stop I might hang it on a mirror, but in other questionable situations I don't feel comfortable doing that. Bringing it in the store or building or whatever is inconvenient and clumsy. so, what do the experienced riders do with your helmets when you get off the bike for a bit?