a good think would be "close tranffer window on pressing cleanup if no transffers active" ... this is for sure, I give 99% that 95% of people close transfer window after pressing cleanup if "everything is clean" ... because it's just of no more use ... it would be 1 click instead of 2 ... all these small things makes skype more quckly usable
and it wouldn't take much of development I think would it?

BUT

simultaniausly, you should take the options of file transfer window to general options section, because if not, there's not really a way to change options of transfers

P.S. Since this is copy of FireFox transfer window: it has that "bug" too, and I really notice myself wasting part of second on that one. 20 uses of file transfer per day, that's 20seconds, ... that's 10min per month! ... you can make love with your girlfriend in that time

you're quick!