What is your favourite thing to do in the Sims 4?

Putting a sim/family in a shell of a house, saving up some money, and decorating/building the house one room at a time, so that you have an amazing fancy kitchen with everything you'd want, but the rest of the house is still concrete and you're back to no money and saving up again. I don't remember how I got into that habit, but I do it a lot and I just love it.