local storage
I frequently use the local storage on my work machine, but I fully accept that it isn't backed up so the stuff on it is effectively a big 'tmp' drive. (The important stuff goes in the CMS or a network share - I'm not THAT crazy!).
I sometimes have to deal with files that are over a GB in size and they really don't want or need to be on a network share.
Recently our central IT changed some setting which has resulted in much more stuff being synchronised from the local drive to the network share. Queue massive network slowdown whilst a couple of TB of data from me and a few other similar colleagues gets hauled across the shared 100Base-T connection to the remote file server.
At least they no longer map swap files to a network drive...