Interesting, I may need to try this out. I tend to have a similar approach but it sometimes results in keeping tabs open for along time, or dealing with a restore previous session everytime I start up.

I keep bookmarks for specific things, sometimes ephemerally and sometimes to keep the link for reasearch, etc. Every so often I make a pass through a bunch of bookmarks and delete the ones that have rotted. Or try to point to an archive mirror if available. That process does a decent job getting rid of the junk. I do need to work on isolating my personal from my work reading when at home. I use different windows but I should be using different profiles or something.