Chuck - The fact that I still remember, F7-10 says it all as far as I'm concerned. This thread is years old... came back up... and got lots of nods.
I use the goto beginning and end of clip buttons to quickly zoom to adjust fades. This can take time on a track that has been heavily split. I know you can set the clip fades for every clip on a track at once, but I need to double check them at least to make sure I haven't cut off sound I want.
I use the mark of selection start and selection end so that I can span markers for my selected area. I use ctrl page up and down to move between the markers. Without being able to use a hot keys to set selected area between markers, I end up deleting the markers in the middle which just isn't a good solution. When there are no markers in the middle, I can set selected area with just a click. I do this because I like to ctrl+a to select all tracks, quickly select the region between the markers and then bounce to tracks.
@Brundlefly - Thanks!