Just thought of something else you may want to add to your ensemble .... pillow(s)
Why? you may ask ....
All too often when I have gone elsewhere to sew, the ergonomics of the tables and chairs are not anywhere near friendly when sewing for any length of time. So much so that I want a booster seat to get me closer to the right height!!!
Sometimes I have managed to stack two chairs together, but that is not always do-able.
Now, I take a cushion or two with me, and leave in the car, so I can grab if need be.
Most importantly ... Have FUN!