Here is a summary of the day trips I took while based in Madrid last year (2012). Thought it would be easier to check out which blog interests you by giving you this list. Just click away!
El Escorial: Not Just Another Gravesite
Valle De Los Caidos: El Hombre Generalissimo Franco
Eating Around Spain : In Madrid and Elsewhere
Early Start To Valencia, Spain
Do-It-Yourself Trip to Aranjuez