Hey,
Ditto is an extension to the Windows Clipboard. You copy something to the Clipboard and Ditto takes what you copied and stores it in a database to retrieve at a later time.
I think it has a portable version already done, but I'm not sure if it's ready to be included as a PortableApp or not? Or if it's even feasible. Anyways, thought I'd drop you the link:
http://ditto-cp.sourceforge.net/
Thx,
jr2
https://portableapps.com/search/node/ditto+portable
First result:
https://portableapps.com/node/11225
Sometimes, the impossible can become possible, if you're awesome!