I use the Evernote plugin for saving random snippets of interesting text I might want one day; and for pages I'll want to visit in the next 6 months, I use 'Read It Later'
http://readitlaterlist.com/What's so nice about read it later is that it's quicker than regular bookmarks. I hit alt-w to add current page to the list, alt-w to remove it when I'm done, and that's it.
The regular bookmarks are heavyweight enough that I just wouldn't do that. (And this allows a nice division between regular bookmarks, links I'll be using for years, and RIL bookmarks, which I could get rid of anytime as soon as I finish with them. I could do that with folders, and that's how RIL works behind the scenes, but that's still more heavyweight.)
There are other features, like auto-saving the pages to disk for offline access, or a personal RSS feed, and integration with various Web 2.0 thingies - but that the core functionality is so quick and easy is the greatest part about it.