Key - issue
So, it's summer, you get dressed in sports clothes and take your bike for a quick - or not - ride, mostly for working out, but might later turn into a fun ride, too.
You must take your keys with you, while everything else is not necessary this time (cellphone, food, etc), but you don't want to have your keys on your pockets (or you don't have pockets, like in my case!).
Question: What do you do with your keys/key chain???