You better have more than just $20 in your pocket when you visit Annex Vintage because it's assuredly going to cost you more than that - not necessarily because it's an overpriced place, but because the items are so thoroughly curated and well presented that it's pretty much impossible to simply walk away.
The hipster-friendly thrift store offers a selection of classic retro clothing, shoes, and accessories from anywhere between the 1950s to the 1990s at very fair prices for the quality you're getting. Nothing is ratty, deteriorated or even in remotely bad shape. The owners take great pride in their selection and they are very passionate about their business, fashion in general, and sustainable living.
If you like something, buy it. Everyone knows about this place, so consequently the turnover is quite high; items don't usually stay around long enough to gather dust.