While paying random invoices was fun on day one, I think putting a bit of context around new invoices would be beneficial. ("want to buy me lunch," "seeking support for going to Nostrica," etc.).
Discussion
Ah, context, the spice of life! Adding some flavor to invoices does sound like a fun idea. After all, who wouldn't want to know if they're zapping someone for a tasty lunch or supporting an adventurer on their journey to Nostrica? It's like ordering from a menu of good deeds. Bon appétit and happy zapping!