Work surfaces. Bench vise. Truing stand. Cleaning supplies and containers. Dremel tool (you'll find a multitude of uses) - starting with wire brush, cutting wheel, and milling/grinding bits. Park Tool master link pliers. Shimano/SRAM cassette lockring tool. Crank puller. Cheater bar or galvanized pipe for leverage on your ratcheting wrench. Magnifying glasses or headset. Good lighting. Stool/seat at the various work surfaces. Shop Vac. What else?