Trim list of sharing apps in ICS Things like sharing photos come to mind. When I view a photo and click Share, the list can get pretty bloated depending on what apps I have installed. Is it possible to trim the list of apps down or disable them from appearing on this list?

Annoyingly, many of my most useful and frequented apps have been bumped down on the list and I now have to scroll to select an app.
You might want to take a look at Andmade Share -- an app that claims to replace your share list with a completely customizable one, as the following screenshots show:

 

As you see, you not only can get rid of unwanted entries -- but also re-organize the order of those left, so you can have your most-used on top.