I can't believe I have watched this episode so many times
to the point that I can't even count and yet I never noticed
a huge major goof. When Cindy was cleaning Jack's room, she
broke the vase and found $250; she ran out and showed the money
to Janet and Terri and gave Janet the money, then the girls went
into the kitchen and asked Jack about it. Jack told them that the money
wasn't his and it was larry's. Janet and Terri pretended to believe him
and then they went and questioned Larry about it, Larry told them no, that it wasn't his. Later both Janet and Terri went back and yelled at Jack for lying
to them, soon followed by Larry asking Jack to give him back his money.
Now here is the goof, Jack went back into his bedroom to get the money
and found that it wasn't there. Of course it wasn't because Janet had the
money, she showed it to him when she questioned him in the kitchen and
told him that Cindy found it while cleaning his room. I guess somehow Jack
has forgotten all about it. And the money itself, how did it ended back in
Cindy's hand when she clearly gave the money to Janet and Janet never
gave her back the money, and Janet herself acted like she didn't know
anything about the money when Jack and Larry was running throughout
the apartment looking for the money. So in the end this episode is somewhat
funny but makes no sense at all.

I would have to see it again to know but maybe Janet gave the money to Cindy offscreen and we just didn't see it?