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As you are working on different computers a track cleaning program might be useful.
Do you have any in mind?
Is there a cleaning/erasing program to make portable? If I work on a word document there will be a version in the temporary folder?!
Not positive if this is what you need, but you might want to check out "IE Privacy Keeper ***TakeAlong*** version" at
Make sure to get the correct version for download...
Use the menu on the left of the screen to get more info, and some screenshots as well. It deletes a lot of stuff, including Windows Temporary Files...and it is customizable. Only issue I've ever had with it are sporadic issues with Firefox (not Portable Firefox) and my start page not loading completely (which just requires using the "Clear Cache Now" function in Firefox's options, then refreshing the start page).
(FYI...there is also a version for install on a PC... http://www.unhsolutions.com/IE-Privacy-Keeper/index.html )
I've got Disk Cleaner and MRU Blaster on my thumb drive, but I don't use them for much.
There's also a thread on CCleaner.