I can spend hours at a time on it if most days, then check back regularly once I've read everything I can to see if more has come in.
Most days I will look in several times a day and stay for quite a while on each visit. I work at a PC and so it tends to be open in the background to check in while I'm waiting for other things to finish running.
Some days like yesterday I don't check at all, but those are ones when work is very busy with nothing that needs to be left running and then I'm either out or feel ill in the evening (yesturday was a migrane

)
Let's just say, there is a reason that I chose 'Orchidboard Addict' as my title on the forum!