The old Boy Scout motto is “Be prepared," and that wouldn't be a bad Timebank motto
/For example, if a fellow Timebank member is coming to your home to fix your porch, be prepared! Ask the person what parts might be needed. Consider purchasing screws, boards, and balusters in advance. If they are not needed, they can be returned. However, if you need them for the repair visit and don’t have them, time is wasted. Either you have to arrange another visit for after you’ve gotten the parts, or you’re spending extra Timebank hours for the person to go to the store and shop. A Timebank handy person may have all the skills to fix your toilet, but don't expect him or her to have a truck full of parts, unless plumbing is also his/her “day job.”