2002 onward: indirect full spectrum lighting. Got a lamp off think-geek that adhered to monitor. Set it up at home and requested it in offices. 2006ish onward:

2002 onward: indirect full spectrum lighting. Got a lamp off think-geek that adhered to monitor. Set it up at home and requested it in offices. 2006ish onward: Kinesis Freestyle 2 split keyboard. Owned 2ish, had each employer buy one. 2007ish onward: f.lux screen temperature adjustment, relative to sun. 2012 onward: Standing desk with tall chair in wheels or felt pads. At home and at software eng / devops jobs. 2014 onward: floor mat at standing desk, like at a cash register. Firm enough for wheels on chair to roll on and be stable. 2016 onward: thumb trackball mouse. Sometimes places bedtween segments of split keyboard. 2016 onward: good shoes. Memory foam, strong builds, maintainable materials.