Go shopping.

With a spring in your step, you head to the Market of Trajan, eager to see what your coin is able to purchase today. You enter the massive, three-storey stone building and make your way among the aisles - here Rome is at its busiest, and you have to gently push to make your way through the crowd. You spend a few hours browsing the wares and absorbing the gabble of languages from points all across the Empire (and quite a few beyond) before you decide to actually inquire about a purchase.