Having the right tools for a creative undertaking makes it easier to express yourself. You aren’t fighting to make the hammer take out a screw, or trying to get watercolors to stick to plastic.
One multi-purpose tool that is useful for all sorts of crafts, hobbies and projects is a Dremel rotary tool. They come in a few varieties, and there are a wide array of bits and attachments that can be found for just about any purpose you might have in mind.
The basic idea is that you get something that you can hold in your hand that spins whatever tip you put in it. It can be a screwdriver, a drill, a sander, a grinder, a router, an engraver, and so on.
I find it to be one of those tools that keeps finding new uses for itself.
Here’s an overview video about the basics of the Dremel tool.
And here’s a video about buying and using a range of Dremel bits.