I look for this pack of 10 boxes to go on sale once or twice a year (used to be 10USD now 12USD. They are a good size to hold paper i.e. you can fill them up and still carry the box! A needed item for people who accumulate paper even if just to haul it out to the recycle bin. Latest batch did require more care tearing lid from rest of box bend several times and grasp close to performation to tear off.
good for their intended purpose and then some used them to pack up some heavy items like CD's as well as files not too big so you can pack some heavier items without breaking your back. I use these because I bought a lot they work well. Use a lot of tape.