I’m going to be doing my first ever market and it’s outdoors. There is no wifi. Is it truly reliable to use the data on my phone? It’s only 4 hours and part of a community Canada Day event. Which system do you prefer (square, PayPal, etc)? Any tricky things? Do people still want receipts printed? Any pro tips - (let’s assume the battery is fully charged - lol!) The wisdom of the group would be appreciated!!