AndyG from the Wii experience blog has recently written a nice article regarding two things you can do on the Nintendo website. One of them, and the most important in my opinion, is that if you register your console on Nintendo.com, it will increase the warranty of your console by 90 days.
Another neat thing about vising Nintendo.com is that you can purchase, from the online store a game case for Wii Sports, since the game didn’t originally come with one.
You’ll have to print out the case design from here (warning: 4 megabytes file), but at least it’s nice to know that these things are available in case you accidentally break one of your cases, lose them, or burn illegal copies.
