I'm a bit of a fan of babysitting; it's one of my favourite things to do of an evening. It's like you're Santa Claus: you get to hang out in other people's living rooms; you can leave without folding the washing or loading the dishwasher; and there's always a snack and something to drink left on the kitchen bench.
But the benefits of babysitting extend far beyond the sherry and carrot sticks. Babysitting gives you access to miles and miles of other people's book shelves. I would never have read The Science of Superheroes, or the less cheery but equally fascinating Mountaincraft and Leadership if I hadn't been a serial babysitter in some pals' houses. (Not to mention The Complete Kama Sutra - heavens! Life would have been the poorer for that.)
So I'd like to make a suggestion: I propose that we all establish households, have children, get guinea pigs, etc., then promptly head out our front doors and move into the house immediately to the left of our own. That way we'll have that 'Just here for the evening and ooh! Isn't the telly so much more interesting over here' feeling all the time.
Now if you'll excuse me my charges for the night are fast asleep, there's dark chocolate dipping sauce on the kitchen bench just waiting for me, and that couch in the loungeroom looks so much more comfortable than my own. Sweet gig or what.