This morning I used a new bathroom cleaner that I have not used before. The instructions told me to just spray it on, leave it for a minute then rinse off, no rubbing required.
I could not help casting my mind back to my mother's bathroom cleaning day, I think it was Tuesdays, which would start with her liberally sprinkling the bath with a pink powder called Ajax after which she would scrub and scrub and scrub and rinse and rinse and rinse. Even so there would often still be a gritty bit in the bottom when I was given my weekly bath.
Times have certainly changed. What do you remember from your childhood that has changed a lot?