Save.Me is an extended clipboard manager, saving absolutely everything you copy there: text, images, URLs, files, folders, whatever it might be. And so if, later, you realise you need to refer back to a URL, all you have to do is open the program, and scroll back through your activity until you find whatever you're after.
Save.Me's in-depth record of your copy and pasting is one of the program's strong points. Other clipboard managers might just display a snippet of text, for instance, but this one tells you when it was copied, from which application, and its total size in kilobytes, as well as allowing you to preview the item. And when you've found the relevant object, a double-click will copy it to the clipboard again, ready for immediate reuse.
Save.Me saves its information to disk, too, so your records will survive across reboots. And over time this means they can build up, making it more difficult to find what you need. But the program can help with a calendar-type view where you can, say, click on last Saturday (or whatever) to see what hit the clipboard on that day. Or the built-in Search tool will locate items according to whatever keywords you enter.