I have a website, but most sales are done over FB and customers pick up at my house. I either purchase designs on Etsy, pay a designer to create dxf file or do it myself (if it's easy). To be honest, I don't like the position I'm in with this. It makes too much to give up, but not enough to be a "real thing". Plus, I'm still trading time for dollars.
As for people coming to my house, I've completed nearly 1000 orders (most have done local pick up) and have never had an issue. Most often I leave the order at the front door and they either leave cash in mailbox or they e-transfer at pick up. Knock on wood, but I've never had anyone not pay.
Do you pay for ads, or just make for sale posts? How often do you need to manage the posts? I know there are a ton of people who message sellers and then just waste their time. How do you handle customer support?
Feel free to shoot me a message at jack at minardi dot org