I saw an item about stretching (jelking?) your willy on telly several years ago. This doc said tightly grip the end and stretch it for 15 seconds to left, to right, up then down. Only a minute a day and works best when warm in shower. Cock would be noticeably longer in six weeks. I thought why not and gave it go.
Did fuck all and I must've pulled too hard cos i ended up with a bruise/welt on me shaft.