LJ SkillShare is a space to offer your skills or ask someone to help you out with a task. You can share your skills for free, for money or for local exchange units like LETS if the person you're helping agrees.
Most skills shared here will be virtual skills that don't involve you being in the same city. If you don't find what you're looking for here, try skillnetwork, another LJ community for skillsharing.
However, I envisage a bunch of locality-based skillshare journals popping up for non-virtual skill needs. If you know of any, please tell me, and I'll post the list here.