Even better thsn snapdragons are dragonfruit which are for collecting at the Romance festival (no rambling through the countryside required) however you have to wait for the festival. And then they take 3 to 4 days to grow. But dragonfruit sell for 250 each i think. (Or scrape together some money for a day trip to granite falls to buy a glowfruit, instant money maker)
Sometimes I get my asset rich cash poor sims to sell off furniture and clutter items pretending they have pawned them. Quick money boost and you can rebuy them later (get them back from pawn shop). A little secret that maintains her rich appearance in the public eye.
Narrowing wide staircases and deleting one if there are two are also quick money spinners. Make 2 or 3 rooms open plan, knocking down the wall gets you money. (I am sad that my Sims have money spinning ideas because I fail to look after their finances).
Finally marrying rich is right up Judith's alley. That doesnt take long and the marriage will add drama to your game.