Your go to way to earn money?

Okay, it's not QUITE as much as some of these seem to be, and it's super time consuming, but you can make a lot of consistent money with a high quality garden. Try to get everything to "perfect." It takes a while but I think it's worth it, especially for a legacy. If you buy the "free services" perk you can even have a gardener come tend your garden which lessens the workload for your Sims. But if you've got teens, I'd just make them take care of the garden :D