Log what you've lent and borrowed, and post a shout when you need to borrow something. A shared little ledger for you and your circle.
Get StartedWho has your drill? When's the casserole dish coming back? Log it once and stop wondering.
Need a ladder for the weekend? Post it. Anyone in your circle can say "I've got one."
Invite family, neighbors, or friends. Everyone sees what's out and what's needed.