1. Stake out the dirty spots on the subway platform’s yellow warning strips. That guy who always knows where the subway doors will open? He’s not psychic—just smart. The filthiest areas on the yellow warning strips mark the locations where the doors most often open.
2. Learn MetroCard calculus. Unless you buy 30-day unlimited cards, chances are your wallet is full of MetroCards with a few cents on them. Luckily, nailing a MetroCard with the perfect balance doesn’t require an advanced degree in mathematics. When you add money to a card, you’re automatically given a 5 percent bonus. So, if you’re purchasing a new card, throwing $21.95 on it (minus the $1 fee) gives you a balance of $22, or enough for exactly eight rides.
3. Don’t be scared of the front row at Film Forum. Since the screens are smaller at this cinema lover’s mecca, the first row inside any of its theaters actually boasts the best seats in the house.
4. Download these apps immediately. A number of smartphone apps, including Curb and Arro, make it easier to hail a cab, let you reserve a taxi for pickup up to 24 hours in advance, and allow you to pay for the ride with your smartphone. Flush Toilet Finder advises you on the nearest accessible (and clean!) toilet in case of an emergency, and the MTA’s impressively reliable Subway Time is an easy way to determine (even from your bed) when the next train will pull into your station.
5. Walk the semisecret Sixth-and-a-Half Avenue. Between Sixth and Seventh Avenues, you can make your way from West 51st Street all the way up to West 57th Street while avoiding all the sluggish midtown crowds.
6. Arrive at the TKTS booth at the perfect time. Most people know that those bright-red steps in Times Square are the place to score discount Broadway tickets (Fidi and Downtown Brooklyn also have TKTS booths). But like any good play, timing is everything: Show up at 5pm sharp, when box offices release most of their available tickets for the day.
7. Use lampposts to navigate Central Park. Each post in the park has four numbers on the side. The first two digits indicate the nearest cross street. The higher the second two numbers, the closer you are to the park’s north-south centerline. Finally, if the last number is even, that means you’re on the East Side; if it’s odd, you’re on the West Side.
8. Shop at the Trader Joe’s in Union Square on weekdays, before noon, for the least-crazy lines (we asked).
9. Apply for affordable NYC housing by creating an account on the official Housing Connect website.
10. Head to a less-frequented flea market for better finds. Everyone loves browsing independent vendors and searching for unique treasures. Unfortunately, Brooklyn Flea and other popular marts are often picked over and pricey. Instead, try Grand Bazaar NYC on the Upper West Side or Hell’s Kitchen Flea Market.
11. Swing by Housing Works before your Saturday brunch. The staff at this fabulous chain of charity stores stays late on Friday night to get ready for the weekend rush, so arrive first thing on Saturday to nab the new swag that’s just been put out for the week.
12. Sound super smart by pointing out that the trippy Union Square art installation with the rapidly changing numbers is a midnight-to-midnight digital clock.
13. Hit up Manhattan’s chillest hidden park. Smack-dab in the middle of Manhattan, the tiny Greenacre Park offers a zen escape during the weekday lunch-hour rush—and on top of that, it even features its very own 25-foot-high waterfall.
14. Never stand in line for a Broadway show—just show up five minutes before it starts.
16. Book Restaurant Week reservations carefully. Always compare the eatery’s everyday menu and its special Restaurant Week menu. Ideally, the two should be similar—meaning, you won’t get stuck with second-tier grub.
17. Figure out the cross streets of any address. First, drop the last number of the address. So, 480 Lexington Ave would become 48. Then, divide that number by 2 which leaves us with 24. Next, add or subtract to that number the "magic number" provided in the Manhattan address algorithm chart. In this case, that would be 22 so you end up with 46. Therefore, 480 Lexington Ave is located on Lexington closest to 46th St.
Photograph: Virginia Rollison
18. Know your free museum days. Some museums in the city—including the American Folk Art Museum and The Museum at FIT—are always free. For the rest of NYC’s museums, keep this list of free or pay-what-you-wish hours handy.