Treasure Hunting.

Disregard the size labels in Vintage Garments: sizing has changed dramatically. Always try things on.
Do not be a label snob. Remember that many exquisite items have lost their labels over the years, unknown companies are still being discovered. Judge quality by construction, cut and fabric.
Check the stitching. Real Vintage pieces are better quality than contemporary counterparts as they were made before the days of mass production and machine finishes.
Factor in the price of Love. When viewing a piece, be aware of potential costs. A garment may require careful attention to be revived. People sometimes don’t realise the amount of care and effort needed to restitch a lining in a tattered jacket, or hemming a dress so it sits beautifully well.
Be Patient. You have to look through a lot of rubbish to find a treasure.