Memorising endgames

Chess players learn/memorise openings, but don't really do the same for endings. This kind of makes sense, as there is no guarantee you will ever see a particular ending, but there are some that are common enough that committing them to memory would not hurt.
One classic example is the Rook and Pawn ending from the final game of the Capablanca-Alekhine World Championship Match (1927). It is a good example of how you convert and ending where you have an outside passed pawn on the queenside, while there are equal pawns on the kingside.
The key ideas are to put your rook behind the passer, forcing your opponents rook to blockade. Then bring your king towards the queenside, forcing your opponents king to try and keep your king out. Then shift your king to the kingside to attack the pawns. Finally, break up the pawns on the kingside with a pawn push of your own, before picking them off and winning!
While it takes a little time to complete, the general method is usually enough to collect the point. I've even had the need to use it recently, when playing some casual games at Street Chess.

Alekhine,Alexander - Capablanca,Jose Raul [D51]
World-ch12 Alekhine-Capablanca +6-3=25 Buenos Aires (34), 26.11.1927