There was a fair amount of stuff in there that I "knew" I wanted to read (some LW sequences stuff among them). I've found a bit more success by putting things I actually want to read in my top-level bookmarks, right at the front, because then it causes clutter which I want to reduce (by reading and removing them). The difference may just be in that I'm less likely to bookmark something with this system in the first place, but it feels like it works.
A lot of times you may come upon a juicy-smelling "information scent". Now you have a decision of whether to extend your lunch break and cut into work by following the scent (bad) or abandoning it (painful, and possibly bad).
One thing that has worked for me is using either delicious or more recently instapaper app to save the link (instapaper will actually sync the entire article back your iphone/pad/android). Pang of pain is largely avoided, and I can decide later whether this bit of info was worth reading, by comparing it to my other saved articles in the app at the appropriate time.