I purchase about 50% of my clothing from the thrift store, and the other 50% from places like REI, Prana, Sierra Trading Post, etc...I don't step foot in the mall, it's such a waste of time, and an opportunity to spend money on impulse purchases that I wouldn't have even seen if I hadn't gone...
I used to purchase almost entirely from the thrift store when I lived in the south, but now that I've moved somewhere with an actual winter, I do like to buy quality outdoor gear, and winter coats new. I love the styles that Prana sells, and buy a lot of my clothing there. It is expensive, but VERY well made, and fits so well. I also love the clothing that REI sells, and a lot of times can find the same brands at Sierra Trading Post for less $$. I worked in the outdoor industry for a while in the past, so did get a substantial discount on brands like Marmot, Patagonia, Mountain Hardwear, Smartwool, etc...so that made it easier to get some more expensive items like down coats, and base layers.
I do sometimes go to Marshall's and TJ Maxx. I love designer jeans, that is my one clothing extravagance that is not a NEED (like winter/outdoor clothes). Marshall's often has the designer brands I like, for $100.00 less than retail stores. I have a couple pairs, some still even from high school, that are still in great condition, and I wear them almost daily. I have found some designer jeans at thrift stores, but often the selection is slim for me (really long legs).
For shoes, I wear Chaco sandals exclusively in the summer (unless I am wear running/hiking shoes) and in the winter I have some Teva boots, and some Chaco fur lined clogs...they are ugly but SO warm. I have a couple of pairs of dressy sandals and boots, from highschool and college...but I haven't bought new shoes in forever! I'm not so far out of college, so most of my things are still style ish...kind of :)
I will drop about $100.00 every two years on a new pair of Chaco's and wear them until they fall apart...