Ditto

HovText

HovText is a much simpler tool than Ditto, but it does one thing that Ditto doesn't do, it "removes any formatting from the clipboard. Any text in the clipboard will be pasted as raw text without any HTML code, font size, color or layout etc." If this is something you need, well, you just have to have it. It also remembers the last 10 things copied to your clipboard.

Ditto is quite a bit more advanced. "It saves each item placed on the clipboard allowing you access to any of those items at a later time. Ditto allows you to save any type of information that can be put on the clipboard, text, images, html, custom formats, ..... "

So, take your pick. One of these tools will suit your needs.

http://ditto-cp.sourceforge.net/

http://hovklan.com/hovtext/