I know this is going to sound kind of strange, but have you maybe thought about starting your own business. Something like a groom at home service for people who want their pets groomed but can't make it to an office. Granted it isn't using all of your vet nursing skills, but it does keep you in the area of animals. I know that I would pay to have someone come and cut the gang's claws (I have four 4 and it is a pain in the butt to haul them in for trimming).

Jen is a pet groomer, she could probably tell you more about it than I could.