Since we're talking about chairs, I have a comfortable, old office
chair that I use at my computer desk. I've had it for about twelve
years. And I won't get rid of it until it falls down around me.
I didn't want to mess the carpet up with the wheels, so I went down to
my local Office Max and bought one of those cheap ($15.00) clear
plastic mats that go underneath. Not the hard acrylic mats, but the
soft one.
Now it has four indentations where the wheels reside that won't allow
for the chair to roll back.
It's even hard to get it to roll back when I WANT it to! ;-) But it
keeps me in one place when I'm at the computer.
Jim Tester