When I first heard about the Windows Vista Sidebar way back when I was very excited. I thought Wowie, (yeah i say wowie and I give High-Five all the time too - What?!?) I am going to get every widget possible into my sidebar and be uber productive. (edit: I might be over exaggerating - just a little :) )
But as it turns out the Sidebar has more than one screen. When more than the visible number of gadgets are in use, the excess gadgets flow out onto another screen. The arrows at the top of the Sidebar take you from one screen to another. Even your less-used gadgets can be just one click away.