Gizmomill's LED Brake! Light panel.. Cagers back off noticeably.
Garmin's 2610 GPS: Takes me there without fumbling with maps. Helps me find accomodations, local attractions, restaurants, etc..
Aerostich's Roadcrafter 1 piece: The design is a bit long in the tooth, and needs an upgrade: waterproof zippers and at least one water proof pocket, but for most of my riding, I ride it because of its abrasion protection and convenience of easy on and easy off.
Gerbing's heated liners extends my riding day and riding season.
Schuberth helmets: comforable, and a built in sun shade is a big plus, no hassles with sunglasses, or swapping dark shields.