What’s the most annoying part of tracking vehicle maintenance?

I’m curious how other car and motorcycle owners usually keep track of maintenance, fuel, expenses, and service history.

Do you use an app, spreadsheet, notes, repair shop records, or just memory?

I built MotoCare because I kept seeing this problem: vehicle data is usually scattered, and owners only realize something is missing when they need it — before a trip, during service, or when checking costs.

Would love to hear how you currently manage it, and what feels annoying or missing from your current workflow.