#9: Walk With No Destination
Cusco is one of those beautiful cities where almost everything is accessible by foot. Chances are you are staying in or around the main Plaza de Armas. This means that with the exception of the Saqsayhuaman Incan Fortress, you can walk to just about any destination in Cusco.
Except, I recommend that you walk with NO destination.
Walk out the front entrance of your hotel, bring a jacket, a card with the hotel address, and comfortable walking shoes. Make sure you have an hour or two without any commitments, and walk.
You will find interesting people. You will find incredible views. You will find ancient Incan sites. You will find cafes and restaurants and llamas and cathedrals and markets and... you get the point. You will find Cusco. This city is enchanting. It isn't a UNESCO World Heritage Site for nothing.
When you're tired, trace your steps back or grab a taxi, it will only cost you $1 - $2 to get back to the main Plaza and/or your hotel.