Captured this sign today outside a local church. Pay no attention to date, haven't changed it for a while. Anyway, since I don't have either, I'll skip attendance. Edit: OK I have a car.
The Esszett (double S) is only used in Germany... All other Countries having German as Language (Austria, Luxembourg, Parts of Belgium, Switzerland, Lichtenstein), just write "two s" - like "Ordnung muss sein"... As an Alternative, you can use old ASCII-Code Alt-225 for ß
Edit:
and this is something for summer (when it should get summer this year, of course):