worked at H&H bagels
Sold stories to peterman
Took the handsome cab route(gave Rusty the horse gas)
The antique record business with Newman. Not to get off topic but I just wanted to say that in that episode where the group was spending time with elderly, that old man that Jerry got, had to one of the most funniest bit parts ever on Seinfeld. Just thinking about it right now is making me laugh especially when he asks Jerry to change his diaper and he thinks the maid is play vodoo music.
Betting on horse races
I can't remeber how else Kramer got money
oh, he sold his coffee table book about coffe tables
He sold a wooden Indian to Mr. lipman