I could list hundreds of things I should be familiar with that I'm not. Just the reality of a spoilt, sheltered upbringing where I've been preoccupied with major allergy trouble (and I dunno if that relates to modern life or is just bad luck). I react to stuff labelled hypoallergenic sometimes, and liquid detergent is bad news. Clothes dryers seem better at taking care of any detergent residue left over.
I have a 'tub' that's too small to fit a single pair of pants, but I'm sure you'd get off on me washing one shirt at a time just to fuck my skin up.