Same here, I let life dictate it, if I have a trip or something, I just try to stay active somehow, but I don't usually worry about training.
+1
My last lay off was due to injury. I did some 'exercise' and some lifting but I definitely took a break from my program and any form of 'reginented training'. I was able to return to training after a few weeks. Any longer and I would have had to start on a modified program so I felt like I was working towards something but, physical healing aside, the break did me some good in giving me some time to reassess my priorities and learn to appreciate and take care of my health more.
Under normal circumstances, missing a training session does bother me; it can feel like a loss. Overall, I've usually benefitted from training less and my current training volume is a carefully-considered compromise between how frequently I am
willing to train and how much I am
able to (consistently, at least).
At the moment, I'm following a 4 days a week Olympic lifting training program with 6 week cycles, building to a peak of significantly fewer reps at heavier weights. I usually feel fairly rested after the last week of the cycle (due to the lower volume) so I've not felt the need to take a planned break from training in order to recover.
If my training were more intense (5-6 days per week, 12 week cycles with a longer conditioning phase, for example) I'd probably take a week off after week 8 and do either very light exercise or probably just mobility work and walking/light jogging but nothing with weights.
When I was training S&S, I'd take breaks whenever I was out of town and would typically take it easy for the most part or probably do some push-ups, pistol squats etc. as and when I felt like it just so I felt I wasn't 'going soft'. I never noticed any negative impact in my training from time away from the kettlebells and would often feel much better when I got back to them (although I don't think I ever took a break of more than two weeks at the absolute maximum).