In their heyday, the Pet Shop Boys were the Interpol of the Eighties, dressing up to sing really weird pop songs about lust and loneliness in the big city. They're low-pro now, not retro-worshipped in the manner of Depeche Mode, New Order, or The Cure, but you can hear the reason why - these guys are too sad.
I know April, May and June are a few unbearable months, and working out in a gym and sweating in such dirty hot, sticky, humid weather puts me off. The best way is to swim. I feel so fresh and rejuvenated after swimming, and I believe it's one of the best mode to fitness during summers.