This is what I use: http://amzn.to/1MSrSNa http://amzn.to/1MSrSNa For me, using a stool makes the switch back and forth between sitting and standing much more

This is what I use: http://amzn.to/1MSrSNa http://amzn.to/1MSrSNa For me, using a stool makes the switch back and forth between sitting and standing much more seamless. And it's the shifting weight and switching positions that gives you most of the benefit anyway.