$8 stand up desk: eight 8" cinder block cubes at about a dollar each. Stack two high under each desk leg. Throw a piece of lumber between the top front cubes fo

$8 stand up desk: eight 8" cinder block cubes at about a dollar each. Stack two high under each desk leg. Throw a piece of lumber between the top front cubes for a footrest. At the very least it's the cheapest way to decide if you like a standing desk.