I came across this idea a while ago and it has been stored away for the time when I was going to need it. Having family members with short legs the time would definitely come when I would be presented with at least 2 pairs of jeans to take up. I have the privilege of living with someone who hates shopping so when the shopping event actually occurs there is usually a bulk purchase. The jeans then sit around waiting for me to deal with the job of taking them up.
Using this method meant it took about 10 minutes to take up 3 pair of jeans and the hem at the bottom remains the original hem so the “look” is maintained.