The HotelRoom Widget allows you to store your Hotel Room number (or any other number or text) in a widget that can be accessed quickly from the Today View.
Simple UI, single field, store numbers and text.
Quick note regarding security, the widget (for quick access) may be viewed when your device is locked, so friendly suggestion... do not keep store any sensitive data in HotelRoom, that is not this Apps mission.
This App mostly exists to assist those who are regularly staying in hotels, we found during business trips that change hotels every 2x days, after day 3, it was advantageous to keep that number handy.