I plan to start buying one piece of equipment for my bicycle per week for the next few weeks. Early on I purchased a new air pump and a basket with a lid for the rear rack. Today, I bought a stainless steel water bottle (for only $4). On Friday I’ll order a mirror (made in Germany and nicer than any other I’ve seen in stores). After that, I need to get lights, a repair kit, an emergency air pump, and a bottle carrier that doesn’t require a frame with holes in it. A hub generator would be nice to have, too.