Who knows - there may be an app or script out there we haven't located. In any case, I'll write a script eventually that is 'safe' and one that is more aggressive (I don't have time to go through the app process). I /suppose/ I could add 'clean' 'unclean' commands to it, but I may have to push that to debatestorming to figure out if people really want that and what the commands should say, stew in there for a while and then push off to some future update that won't have a date :-)

Another suggestion that I found 'accidentally' whilst laying in bed last night messing with it. Don't like or use one or both of the themes? This is easy enough to remove and re-install later, but each one frees up ~3%:

(assuming everyone who knows apt and it requires root as well as making sure the theme being removed isn't the one being used):

//the blue wave theme named Nokia Nseries: frees ~8MB:
apt-get remove hildon-theme-alpha

//the orange them named Digital Nature: frees ~7MB:
apt-get remove hildon-theme-beta

To be safe, you can easily see what theme you are using by checking default symlink:

0x90:~# ls -l /usr/share/themes/default
lrwxrwxrwx 1 root root 23 Oct 30 03:31 /usr/share/themes/default -> /usr/share/themes/alpha

(I don't know if this would affect a future SSU or anything else - shouldn't, but like I said, apparently updates check for various files to be in certain 'places' - they shouldn't bother with this, but who knows.)

Now, why wouldn't those be optified? Haven't tried symlinking to /opt to see how it works, but will probably get around to that today.