Congratulations Sarah,
The first accessory you should consider buying for that new scope is a comfortable observing chair.
If you are not comfortable, your observing suffers! You really do see more if you're sitting!
The chair doesn't have to be expensive, it just has to be the right height to cover most of your viewing positions.
There are all sorts of observing chairs around, from the really expensive ones down to home made ones.
Mine? a second hand Ikea stool, bought on eBay for $30, exactly the right height, light but solid. Saves me a lot of pain later on in the night.
Enjoy your new scope!
Cheers
Chris