I have had to spend the last couple of days hanging around a hospital. One thing I noticed was every nurse has one of these strapped to their hip:
http://www.conni.com.au/content.php?catid=15
It's amazing what they had stuffed into them - pens, rolls of tape, scissors, notebooks, calculators, and that's just for starters.
I thought it would be a handy thing to have at the telescope. It could hold a red light, laser pointer, notebooks, eyepiece caps, and so on.
I guess a photography jacket would be a better solution, but for something to sling on your hip as your heading outside... could be useful.