It all runs together like a dream for me.
# 3 nights in Madrid was perfect.
# Free hours at the Prado, good idea.
# Walking the winding streets and eating: main event.
# Drink the espresso! Try the octopus. Always drink Sangria.
# A day trip excursion, recommended. Next I’d do Segovia.
# Next time: Must see bull fight.
# Pay to get in the churches and castles – choose a location and do them (but maybe don’t do them all, in every location.) The audio tours (in english) are generally your best bet at touring monuments.
# Relax, you have nothing else to do 🙂
# TripAdvisor is very helpful.
# Come back, there’s more to see.