I use a swivel rolling office chair. I have my sewing room set up in an unused bedroom, I have an L shaped area, on the right is my sewing table, i swivel to my left and there is my ironing table. So much better on my knees than having to get up.
Since the bedroom is carpeted I had one of those plastic office mats on the carpet so I could roll the chair. Well after years it wore out. One day we were at a barn sale and I saw an open box of those wood laminate floors (pergo type) that go togeter like a key in a lock. Well for 10.00 we bought it and DH put it together, my chair glides betten than when it was on the plastic thing..btw...it was over 40.00 to buy the plastic thing. So I saved money, it looks nice too.