Also worth checking out is Ditto, clipboard history manager. Much snappier and lighter than the built-in one they eventually put into Windows. Nearly identical to KDE's Klipper, CTRL ` and your searchable clipboard history appears next to your cursor.
There was a software called 3dclip, which is essentially Ditto, but much more lightweight. I think it uses native windows elements and written without use of big libraries.
Unfortunately it's discontinued and website isn't available anymore, but I have installer for anyone who is interested (it's not modified or anything). It doesn't have history search, but if all you want is a multiclipboard, it does that, and some other useful things as well. I use it for many years and happy with it.
Tried Ditto but it's too big and slow for my taste.
Love that app. The built in one does not show tons of stuff you can copy to your clipboard.
I work in IT and people are baffled when I copy a few things, paste them one by one, then search for a thing I copied a week ago…I feel naked without Ditto.
It's really a killer utility. I find it to be slightly better than KDE's Klipper and much better than Butler as a clipboard in OS X (although it's been many years since I've used Butler)