I do a few tasks, maybe three per day... really slowly. Then I'd get distracted (when I'm at a bank, changing equip. for the next task). And I'm usually watching something on the side or lurking in the forums.
Is sharing spiders so hard? I mean, to my knowledge, there are a good number of spiders down there. At least enough for you and the lvl 80. :| Although, I do agree with the mining part. Definitely annoying.
I have days when I just quest all day (sometimes for requirements and sometimes because I'm bored of whatever else I'm doing). Still have quite a lot of left to do. :grin: