I use all of the options named in the poll. I use the bookmarks for easy access to certain screens like the Minor League System Report (the access is easy; setting UP the bookmark is a pain in the neck!!). The icons at the bottom of the screen are used a lot for visiting the pitching staff, lineup and front office screens (by the way, haven't played since the patch came out. Has the problem ever been fixed where you'd press the piching staff icon and be taken to the lineup screen instead, and vice versa? As with the bookmarks, it would be nice if the darned things worked the way they're supposed to!). When I'm checking on various players etc. I generally use the right mouse key to jump out of a screen, but the forward and back buttons have their use when I'm comparing the stats or ratings of two or more players. The "Recent" menu comes into general use when I remember that I was looking at something recently and want to go back to it. Again, useful for comparing players, among other things. I'd be sad to see any of these things removed from future versions, though I imagine with some counselling I could work through it!
Sure would be nice if the bottom icons and bookmarks all functioned properly though ........