Ever been here, done this? A Saturday afternoon’s worth of woodworking creates a pile of tools, bottles, boards, clamps and chips on your workbench. You need a new bit in the router, but a search produces only one collet wrench. Thirty minutes later, sweaty but unbowed, you unbury the second wrench. To avoid bit-changing rage, use this simple tip from furniture maker Mike Lenarz. Buy a pair of small split key rings and a short length of small-gauge chain, and shackle the wandering wrenches into a single, easy-to-hang, hard-to-lose unit. You’ll enjoy bit-changing serenity forever.