I'm starting to notice the lack of feat and ritual space myself. That's certainly a change I'd like to make.
Unfortunately, I seem to have accidentally deleted the PowerPoint files that I used to make the background on this character sheet (don't know when I deleted them, but they're no longer in the folder I thought they were).
Making any more changes to this is going to be more difficult--although it might not be too bad to just recreate the second page from scratch or use adobe drawing utilities to make minor modifications.
I also tried some time back to make this savable from adobe reader, I know such a thing should be possible, but was unable to make it work. If any adobe experts out there knows how, they can feel free to post a version that can save.
In fact people can feel free to modify/post/distribute this however they want. It mostly fits my needs at the moment, so I'm unlikely to make major changes myself.
