Bring a list. Embarrassment makes everyone forget things, including you.

Photograph everything before you open it. Ten seconds, settles most disputes.

Test one thing at a time. It feels slower and it is the only way to learn anything.

It gets smaller. Not easy, smaller. That distinction kept me going.

File early. The window is shorter than people think and it starts at the transaction.

The declaration contradicting the return address is what gets it opened. Same for me with the non-prescription boundary, unfortunately.