I'm currently storing ten boxes of stuff for a friend while he's abroad. They are in my cellar which I only use for storage anyway. They cause me no inconvenience whatsoever.
Today this came up in conversation at work and my colleague was astonished that I wasn't charging him for the space. She says he's taking advantage of me and I shouldn't tolerate it. I think it would be entirely unreasonable to charge for this unless you're absolutely desperate for cash. I'm not running a business, I'm doing a favour for a friend.
What do you think?