Awhile back I ordered some cork handgrips for Mrs. Grouch's tricycle from Rivendell. It's an interesting site. Not only do they carry stuff like BIG saddle bags, fenders and kickstands but, when you click on a product they provide a descriptive paragraph or two INCLUDING common problems you man encounter during installation or use. Most local bike shopd not only don't carry that kind of stuff, but they also lack the experience to even discuss it intelligentally.
The site also includes several short articles that promote the owner's opinions about bicycling. Some of it is seriously counter to conventional bicycling thought. If you're a non-racer, I think that you'll benefit by investigating this site. If you are a racer, you still might find something appealing - but I doubt it.
Mrs. Grouch likes her new spiffy cork handgrips by the way.