New bikes come with two keys, used ones often don’t. Get a copy made on your way home. If you’re in a group and swapping bikes, and one or more of them uses a remote key fob, try to leave the fob someplace on the bike. Otherwise, it can be a long wait before somebody wonders what happened to Johnny? Strange… Oh, I have the key to his bike in my pocket from our last stop 35 miles ago. On the other hand, it’s a drag when the fob is in a saddlebag that won’t unlock, which means you can’t open the gas cap to fill ’er up.