Until last week, my intention was (if my current boy crosses the Rainbow bridge before me) to foster kittens for the SPCA. Much as I would like another cat one day, I hate the thought of not being able to live long enough to care for it into its old age.
Over the weekend I realised that fostering kittens probably wouldn't be suitable for me, because I'd probably keep the lot of them until there was hardly any room left for me or them...
I might foster very old cats though, or find some other way of keeping contact with cats. I could offer to look after local cats for free while their owners are away maybe. I can't imagine a content life unless cats play in some part in it.