[Eric72]

1- know what you’re shopping for
2- stick to listings with quality photos
3- really scrutinize those photos
4- buy from sellers with a long track record and lots positive feedback for selling raw cards
5- message the seller with specific questions (for example: does this card have any creases or wrinkles...)
6- start with lower dollar cards and compare the items you get with the listings

After a while, you’ll develop an eye for what items are truly worth buying. Along the way, you’ll expand your network of contacts and find people worthy of your trust, and worthy of your business.