Restocking and stocks, though I suck at restocking. I had a Snorkle Snout once, but accidentally put 88 NP instead of the 888 I was meaning to do, and lost a 110k profit

I restocked in Bakery and Foods, doing the stock market on the side.
i dont play much anymore but i just spend like 2 hours playing the daily game if its any good.
I invest in stocks and bet on the Food Club. The Food Club is great if you have an older account, if not then it's decent.