I got my smartphone initially for work. I can send a few emails to the people who need them from home before I get to work so I can do my veg out thing when I get to the office. It was also very handy in finding where the next plant is before I get to where the someone told me it was only to find out I have to take 3 left turns because of all the one way streets UGH!
And if someone has to call me from work, I charge them 4 hours each time I get called after hours. I tell them up front that I'll take the 4 hours off on my next business day. It stops them from abusing it.
And I use angry birds when I'm waiting on a meeting, or when off work, I play it while waiting for the table at the restaurant to be ready. it makes the time go MUCH quicker.
"I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." Thomas Jefferson