I have a few rules in my sewing room....
Always close the rotary cutter when you put it down.
Never place a drink on the sewing machine table.
Always oil my midarm between every bobbin change and then use a quilt sandwich to soak up oil before working on my quilt.
Always make an extra block or two to make into an exact replica of the quilt with batting and backing to use to check tension.
Put fabric on the straight of grain before cutting.
Watson