Favorite way to make simoleons?

Gardening, painting, fishing, dumpster diving, flower arranging, beachcombing, breeding frogs and sometimes archeology. Can make big money in Selvadorada excavating dig sites and raiding jungle temples. Plus if you get to a higher level in archeology, your Sims get artifacts in the mail to authenticate. They get paid handsomely when returning the examined artifact. With that skill alone, can make bank without ever setting foot in the jungle. Gardening is my absolute favorite way though, with painting a close second. :)