Not really an AIBU posting for a quick reply as Google didn't help so for that I know IABU!
If you actively wanting to shrink some jeans in the wash how would you do it? I have a washing machine which goes up to 90 degrees and a tumble drier. I wasn't really sure on what size I was as have lost some weight recently I should of done my measurements but didn't. I thought I was a 12 after trying the jeans I was wrong. I measured my waist it is 26.5 inches so I would be an 8 a size 12 is 29 inches from this brand so it should be a doable shrinkage. Label says wash at 40 so would a 90 degree wash followed by a tumble dry do it? Or a 60 degree wash? I have never accidentally shrank anything.