Once upon a time there was a book titled Europe on $5 a Day. Well before that there was the concept of the Grand Tour, when English aristocrats would travel Continental Europe at leisure and at will with little concern for the costs, because they could afford it. Somewhere between those concepts lies the reality for most Americans today. Finding a limitless supply of funds is beyond the reach of most of us, but obtaining the equivalent of the 1950s $5-a-day adventuring in Europe is equally impossible, isn’t it? Well, pretty much, but there is an alternative, as the New York Times’ Frugal Traveler Matt Gross reports. He did his own version of the Grand Tour, on a low budget, and didn’t break the bank. Maybe you can too.