In my web browser, ctrl-shift-T reopens the last closed web page tab. I find myself using that a lot - it's enough habit that sometimes I try using it in Slickedit after mistakenly closing a tab. Would be nice to have a reopen_last_closed_buffer command I could bind to ctrl-shift-T.
A list_closed_buffers dialog would be nice too. I find the File MRU list is way too short and never seems to have the file I want for some reason.