I did it for 11 months (see comments elsewhere here) and I found it was both effective and rewarding. Some key points are that helped me: 1. You have to get o

I did it for 11 months (see comments elsewhere here) and I found it was both effective and rewarding. Some key points are that helped me: 1. You have to get on well with the person/people you're pairing with. You're working very closely with them, after all. 2. You have to take regular breaks. Pairing is mentally exhausting. But its not like 2 hours of conversations, we often sat there one person driving and being silent, the other person watching and making suggestions or pointing out issues. Usually when we needed to have actual discussions we would step away from the computer to do so. We also worked remotely a lot (I miss screenhero...) which probably also helped. 3. We never did overtime. We worked what the contract said and then no more work whatsoever. You need your downtime to recharge. We also usually went outside for lunch, to get a change of scenery and some air to clear our heads. (When we were in the office, when working from home, I dunno what the other guy did) 4. Sometimes you need some alone time to think, separate from a break. That's ok, take the time. Just make sure you both stop coding during this time. If the other person doesn't need time to think, they can go for a coffee or jot down the next tasks to tackle while coding. Or go for a walk. 5. When one person is out (sick, holidays, whatever) obviously the other person can't just sit around doing nothing. But when the other person is back, spend a day just doing code review with them so they can see what you did and why. 6. You need buy-in from all involved. In my case, it was a team of just me and another guy on that project. We were the ones who decided to try it, nobody told us to do it and we weren't forced to.