Depends.
Sometimes I can spend most of the day with the Downs open, even if I'm in another window trawling e-Bay or something. Other times I have a binge and go on here for hours.
I like having a look at random times during the day, but it depends if I am really busy at work or not. If I get a moment between tasks I often have a look though, even if I am busy. But if there's someone sneaking round my desk I have to shut it down right away, because I don't know who I can trust not to be a big ol' grass round here!
But then some days I don't get on at all, even at weekends. Mainly as I'm busy. What I do is say to davem "Is there owt on t'Downs?", and he might go "Nah, it's dead." So I don't log on. or he might go "I'm just having an argument about..." in which case I make sure to have a look, as I may as well, as he'll be quiet and glued to the screen for a few hours.
A lot of the time though, I'll come on for a nose not intending to stop on, but I'll get carried away with a post, which is why I have eye bags, from late night postings. Cheers you guys!
