Is there some sort of genius solution to this I haven't thought of? My children are clearly blessed with short legs (that'll be my genes) as trousers are always a couple of inches too long. I roll them up, they unroll, I roll them up, they unroll. Etc. For ever. I don't want to shorten them because obivously their legs are growing longer. I thought about sewing a button onto each leg and some sort of clever loop, but I can't be arsed. Is there something else I haven't thought of? Bulldog clips perhaps?!