Just wanting to give a quick mention to the new photography stool I bought last week.. I had tried collapsible plastic stools, rated to 400 lbs.. but all 4 have broken really quickly so I bought the following on Amazon

This *IS* an affiliate link on Amazon, but this 2-pack of stools, barely 14 inches tall when opened, worked well for me this week! I highly recommend this, it is rated to 400 lbs and unlike the plastic stools mentioned, held my 270 lb frame while shooting photos with no problem.