At home, I lay down on my bed and slip a diaper under my bum, then I tape myself up (bottom tapes first), and then stand up to adjust to make it more snug, I put underwear or plastic pants over the diaper so it stays in place. Sometimes I will use powder or use a baby diaper as a liner.
At work, I go to the locker room, get a diaper out of my locker, go to the stall, get myself taped up in one of the stalls, then pull my pants up and get back to work.