The creative bank account. You get out of it what you put in. If you want to make a big withdrawal, you need to make sure you have sufficient funds in your account.
Make sure your creative bank is filled with a lot of different things. Study architecture and indigenous tribes, animals and industrial design, politics and power tools, engines and botany, old fairy tales and geography. Also history and video games, science and Broadway plays. And don’t forget physics and French/Belgian comics.
The more you know about stuff, the more believable and creative your ideas are.
You can’t draw with an empty pen and you can’t create with an empty mind. Jake Parker