I shop far too much, but I feel like things have shifted about a bit since March 2020. Previously I went to work, spent time at home, and also socialised, which has changed a lot. Now I am mainly working from home, and socialising a lot less, so I try and think on my wardrobe in those terms. So some lessons from there:
Thinking about what colours and shapes look good on a screen - I'm a lecturer so when I'm teaching remotely the camera is on
Thinking about being warm and comfy at my chilly kitchen table
Not buying loads of fancy going out stuff, because I'm now more likely to meet a friend for lunch during the day than go out in the evening
Spending money on stuff for knocking about at home - joggers, cosy socks etc - when I am not working
I think I am pretty good at knowing which styles/shapes/colours suit me - I'm a hippy size 10, so high waists are good, and boxy tops. I was delighted to get rid of skinny jeans because they always looked shit on me. Equally, I know there are things that might look nice on hangers, but I will never wear - floral prints or anything "ditsy" for example.
Lastly, I figured out a few years ago where to spend money and where to skimp. Because of my shape, cheap jeans/trousers tend not to look great, so I buy those from Levi's and Whistles which size by waist. I am also happy to pay more for nice knitwear (Arket, Cos, And Other Stories) which I can wear year after year. Summer stuff like t-shirts and dresses I am much more likely to pick up in H&M or Zara.