Unusual things your mum taught you that you still unconscionably do

[Jim Becker]

To make bed immediately after rise from bed at morning... I got myself doing that several times even at hotels! :-)

I start making mine before I leave it. But that didn't come from mom...it's because I'm weird. Thus saith Professor Dr SWMBO.

[Peter Kelly]

turn a pillowcase inside out. Put your hands inside in the corners, and grab the pillow by the corners, pull it into the pillowcase while turning the good side down. Really irritates my wife when she sees me do this. So does rolling a pair of socks into a ball.
She also taught me (along with teachers at the time) that you should always complement a woman on her appearance when you first see her. Not acceptable practice now.

This worked great until the wife started buying pillowcases that open in the middle and close with buttons. Absolutely maddening.