Invest in Your Creative Productivity

Any money you invest that makes you more creative inspired and productive— this is a good investment.

Ideas

Invest in digital tools which can augment your creativity. Virtual Reality (Oculus Rift S), iPad, or a digital/video camera are good ones. I think smartphones are highly overrated for creativity. Better to get an iPad than a new iPhone.
Invest money to build and host your own website. The ultimate platform to share your art works.
Invest money in workshops, travel, and experiences. Use money to eat out and meet friends— anything that gets you out of your house is good!