Oh man, that's the worst. For me it's always forgetting to level up my character sheet from the last game. I'll get halfway through a scenario before realizing my health and cards are all wrong for my new level, and then we have to pause everything to fix it. It completely kills the momentum. You'd think after a dozen sessions I'd remember to do it right away.

Honestly, telling the customer is the right move, but man does it feel like poking a hornet's nest. I've eaten costs before just to skip the awkward talk, which is probably why my profit margins look so sad. It's like paying a stupid tax for wanting a quiet life. That scanner story is exactly why I get sweaty palms buying budget gear.

Exactly what @blairc90 said. It's amazing how one tool can change your whole routine. You start finding things you would've missed before.