I use all of the above, but I also couldn't do without a sharp razor blade. I not only do quilts in my sewing room, I also do upholstery work. but one thing that I find that I am always up and down looking for is a measuring tape. I bought one that hangs around my neck and is retractable, but most of the time I just can't locate it. I probably sew in every room of my house!!
I also have my home sewing machine in my carrying case on rollers. I take it with me when I do my trips and when I go to someone to help them with a quilt. But at times I just set my featherweight up and away I go.
I also use those one person fold up tables. I like to use them to sew my squares on as I work on them.
Barb