Despite being comfortably off, neither I nor my two adult daughters have ever spent much on clothing. I couldn't justify the prices in Sea Salt, John Lewis or similar, though I did get a wedding outfit from JL in the sale for eldest DD's wedding. For youngest DD's wedding my beautiful dress cost about £20 from a garden centre closing down sale. I take it on cruise holidays now. That said, I am small in height and dumpy, with the largest boobs of anyone that I know, so I never look as I would like and have got used to it.
My life doesn't often need me to look special or even smart, just neat and tidy most of the time. Hubby is the same.
After I had my first DD and lost some of the 4 stones of extra weight I treated myself to a "designer" dress that cost more than I have ever spent and was totally unlike anything I had ever had previously. DH said "did Pat give you that?" Pat was my best friend who was twice my size. I took the dress back and never bought anything like it again.