If the weather is halfway good, I try to go out, or otherwise I relax reading a newspaper or a book.
Our company used to have better facilities last year, soft drinks and language training were cancelled due to some money reasons. Yes, I even considered the language training as relaxation, because it is an hour "away" with another group, and a different kind of thinking. Now we just have a coffeemachine, a fridge and a microwave.
Especially on Fridays, people would throw footballs around, and listen to music in the accountant department. It's okay when people try to relax and have some fun. But I can never concentrate, so I try to be in other offices on Fridays.
It would be much nicer if they had a lounge or some kind of cantine! So people can go there and relax without making noise in the office, which distracts the coworkers.