I read a crowd beating tip in the RS Guide, which recommended purchasing a combo ticket at the Church of the Savior, whose queues are shorter than at the Cathedral of Seville.
Can you veterans tell me whether I can use the combo ticket on different days? I'm considering a visit to Church of the Savior in the afternoon and a visit to the Cathedral the next morning or perhaps the day after.
I have made huge mistakes in the past based on erroneous assumptions. For example, one afternoon a while back, I purchased a metro ticket which was said to be good for 24 hours. I was unable to use it the next day because the 24 hour period applied only to the day of purchase!! Thanks for your tips and advice. As always, I value the collected wisdom of this forum.