I built a standing desk two years ago and started using it anytime I was using my computer, which was 80% of the time. After a year I liked it so much I had an Amish carpenter build me a much nicer standup desk. Six months ago I moved to a new job and brought my standup desk with me. I still spend about 75-80% of my time standing at the desk and it really makes a difference in how I feel. Got a few looks and questions initially but now people "get it."