Do Kip and Uncle Rico have regular jobs?
I know that Uncle Rico and Kip take a job on the side selling Tupperware (or whatever brand it was called), but being that this is a "side job", this would imply that they each have real "day" jobs. Unless I've missed it in all the times I have watched it, I've never seen anything in the movie that suggests they have regular work elsewhere.
Grandma is probably retired, though she looks like she could still possibly hold some kind of employment somewhere.