The table setup and a sign with your prices will do way more for you than a fancy logo ever will. People at markets buy with their eyes and their gut, and a clean table with clear prices tells them everything they need. Save the LLC and website money for after you know people actually want what you're selling.

The "nobody at the counter warned me" part is fair game, but honestly the blue ink rule is printed right on the form in bold caps, so that one's kind of on you. Still lame that the clerk just shrugged instead of telling you to reprint it black the first time.

The folder trick is smart. I did something close to that two years back: searched for "unsubscribe" in Gmail, pulled up about 400 senders, and unsubscribed from every shop and newsletter list in one sitting. Took me a whole Saturday but the mail slowed to a trickle after that. A tip if you do it: search "category:promotions older_than:1y" first, then just select all and archive. Feels great to see that count drop.