There is actually an official algorithm for estimating the cross streets given any address within the Manhattan grid. I don't know if it still is, but it used t

There is actually an official algorithm for estimating the cross streets given any address within the Manhattan grid. I don't know if it still is, but it used to be published in fine print on bus system maps. It's a little too complicated to memorize, but you could easily keep it on a note card in your wallet and do the calculations in your head or with your phone calculator.