I thought I saw this question asked before but can't find it by search. Basically it seems every time I wash clothes and dry them lately in the drier the clothes come out with a black/grey mark- on shirts its usually on the tip of the collar ( which I usually see having ironed all the rest of the shirt
), but can be other places too. I thought this was asked before and the answer was not to overload the drier and the clothes were being caught on the rubber seal around the door because of too big a load. But I am very careful not to load too much and it still happens. Can any one advise, please?