... that makes the most difference to how you look and feel about yourself?
I'm in my 40s and have always been what could be described as 'low maintenance'. I have pretty good skin and just use moisturiser on it; I never wear makeup, but used to wear tinted moisturiser and mascara when I was younger and could be arsed. I have very long, wavy hair that I'm quite proud of. I never use heat on it and don't even like cutting it if I'm honest, so it's waist-length and a bit straggly at the moment.
Also, I hate shopping and have no idea what my style is, so for work it's simple trousers/ jeggings and shirts, the odd long skirt, and usually boots. At home I wear jeans and T shirts. I'm short and overweight. The biggest thing I think I could do to improve my appearance and health is to lose the excess weight, which I'm working on. I'd love to hear any quick and easy tips that work for you though! At the moment, the most stylish thing I do is paint my toenails!!
Ironically, I'm the proud owner of a teenage fashionista. I asked her the same question (what one thing could I change, that would make the most difference) and she replied, "Dress less homeless!" 😂The cheek!! She is now disinherited...!
Edited to fix a typo.