I don't, simply because I earn money from working online, and if I miss a day online, I miss vital earnings. Also, if I take a break for a while, my inbox would be so full when I got back, it would tae forever to go through them all.
My partner has just started working again - so I've been spending my days with the kiddies. Which makes getting on the internet difficult. So I've been cutting back on my weekday use of the internet. It has been hard, because I get my income from writing and working on-line. So I've had to try and work out ways to work smarter not harder! So I got a smart phone and I use it to check my messages and notifications so that when I get out to the computer (my study is sort of spate to the house) I can just do hub garden stuff, and writing and not be "wasting" time checking facebook notifications. But I LOVE having some time away and getting out in nature. I also find that having a break helps get the creative juices flowing.