Enjoy your Go!
Dies - first get the ones you know you use the most - like strips, squares and triangles.
A roll up masking tape thing to pick up fabric threads is very helpful.
It would be nice to have some shelving to put the dies on, too.
Band aids are useful - you'll find out why if you accidentally mishandle one of the dies. They are sharp!
I have the Studio - bought second hand - and love it. It makes cutting so much easier and faster, and, since I have hand, arm, shoulder and neck problems, less painful. You were smart to get the Go as the dies are much lighter.