not a lizard-how about a snake. a pretty little boa to cuddle up with on a cold winter night (don't get him stoned, they really don't like the smoke). get him young and raise him right (a lot of work, but no chewing or shitting on the carpets). you might be surprised at how affectionate a snake can seem and they aren't as needy as a warm-blooded pet, you can leave for the week-end and not worry about the damage they're doing in your absence. no, they won't fetch your slippers or bring in the morning paper, but such activities are highly overrated.

and in those more introspective moments a snakes eyes can be hypnotic