(31) Tip of the week - parts and pieces

Simply the best online service for parts and pieces to create your invention - McMaster-Carr, at www. mcmaster.com. They've got all your bushings, bearings, shaft sleeves and axle hubs (which incidentally, all sort of solve the same problems, I've now learned), and 500,000 other hard-to-find (read: not in Lowe's) products. Quick shipments, too.