If everything goes well in your life or business, and you have enough money in the bank and roof top of your head, you should play!
What do I mean play?
Try new things and see how they fit to you.
Let’s say you have a growing, profitable business, and you are a pretty early player in the field of what you are doing. You have a buffer to try lots of cool things and see how users/customers or potential ones react.
Where do I get the new ideas?
Pick any product/marketing/sales books from this year's top lists. At least they have “one” idea to worth it to try your business.
Where else?
Look up your competitors! Especially the big ones who have a team and sources. Pick a bunch of their working ideas and apply them!
You work so hard, and finally things are working good on your end. Let’s play without worrying to win! Just learn a new things every day.