What's T K Maxx like? I generally get basics from TJ Maxx, Ross, Marshalls, and Nordstrom Rack in the states, so I figure that with some careful choices and sticking with the clearance racks I can get mid-quality basics for prices where it's okay if it only lasts 1-3 years.
Alternately (and I know this doesn't work in most professional environments and only with certain styles) I keep an eye out for items that could still look somewhat intentional and attractive as they age and distress. So pure cotton, leather, and linen in tans and grays and 'natural' tones look good, acrylic and PU shoes don't. Corduroy and denim and casual velvet are okay for awhile even fading and wearing when paired with newer clothes, a pilly knit top really isn't. Sometimes I think just having better buttons or metal finishes can make the difference between 'artful' aging, and looking cheap and used up.
I'm currently struggling a lot with fading blacks though, especially socks.
OTOH I have had a fitted Calvin Klein black velvet double-breasted peacoat for over a decade, and though I've rationed it more lately, and it's even begun to fade slightly at the tops of the shoulders from sun exposure (in a rainy climate, but I've worn it for half of every year) it still looks good in a romantic classic way.
