a former coworker bought a portable cart that you could height adjust for like 50 bucks and that was a great solution.

An even more spartan version of this

http://www.globalindustrial.com/p/office/computer-furniture/mobile-carts/rolling-laptop-cart-with-storage-22w-x-16d-x-44h-graphite?infoParam.campaignId=T9F&gclid=CjwKEAjw56moBRD8_4-AgoOqhV4SJADWWVCckRe5LbQ60pJR9pwvIVQgmYmwcV6IBdzxNS2dX9aEXxoC9Rvw_wcB