The best shopping trip I ever took in my life, in terms of fashion and value, was to the Goodwill in Carmel, CA. The most fun visit was to the Goodwill in New Orleans--full of Mardi Gras costumes and masks.
I found I've collected too much stuff, and spend too much time picking up. Lately, I've been shopping in my own home--discovering something ignored, enjoying it one more time, then donating it to the local Salvation Army.
Funny what you wrote because I go to Goodwill for books from time to time.
People would be amazed at what you can find there. The wealthy drop off all their castoffs.
That's the ticket to keeping your life streamlined. :) I do it too.