When Wundaweb goes wandering…

…and you have sticky residue showing on the outside of your hem, the easiest way is to cover the residue with a soft, dry clean cloth and place a clean damp cloth over that. Press with a hot, dry iron until the soft cloth is very damp and hot. Now lift the soft cloth sharply away from the trousers to remove the residue. Repeat until it’s all gone; make sure you use a clean area of cloth for each pressing and take care not to mess up the trousers from other bits of the cloth already used for removal.