When I first started, I was on SRP probably about 4-6 hours a day (and that was even before they had the little chat thingy going!). At the time, I had a laptop that I was checking on the couch while watching television with my wife. As of now, I only really check SRP at work (during breaks, lunch, slow time) and on the odd occasion at home.

Like everything though, I find it ebbs and flows...some weeks I'm on all the time, while others I barely even make it online.

So, long story short, no I don't have self-imposed limits, simply because life is a great regulator of all things non-essential.

Just my $.02.

Mark