I've done the banana slicing trick before - it's very effective
What I learned today (Saturday) is that I CAN enjoy exercise so long as it has a Latin American beat.
I did Salsa-cise and Latin Aerobics with new instructor at the local gym. His name is George, but as he is Chilean it is "Jorje"

and he as far from an effeminate male dancer as you can get. He's built like a bull - but boy, can he move
At no point during the two sessions (an hour each) did I look at the clock to see "Is it nearly finished", and the fact I was the only other man in the room didn't bother me at all. In the Salsa based one he even did some partner work (exchanging partners time after time) so I got to dance with 6 different women.
Afterwards I applied myself to some NVQ work I've previously failed to get through (showing mental alertness), and then dashed home to get sorted out for my evening shift at the bar - where I didn't get the usual 10pm drowsiness (showing physical stamina). Or in other words, I got the supposed 'benefits' of exercise that I have
never had from doing exercise in the past.
I'm knackered now, and my legs know they have been doing 'something', but unlike other exercise I don't feel bad at all.