One great "hack" I've discovered is that most hotels are more than happy to stow your luggage behind the counter, or even in a luggage room if you arrive before check in times.
This more or less completely eliminated my gripe with check-in times being later than I arrive to a city.
True, but I still need to shit an average of 3 times every morning and the arrivals are Poisson. Problematic in many European cities that don't have restrooms everywhere.