Here is my little kit for efficient instrument work!
A pencil and a good eraser for annotating;
A black pen, preferably ball point, and a white-out tape to clarify changes in general indications, such as pedals changes;
Highlighters, for important things
A NAIL CUTTER
Always important to have on hand
To feel relaxed
The real good old version, with a loud sound
To be gentle with your neighbors' ears
To write down all the ideas that cross your mind and challenge your concentration
TEA AND NUTS
Any type of drink and snack of your choice that won't get your fingers dirty, to maintain your energy level
Enjoy your practice time!