For the first time in Manhattan we lived on 14th street – this nice and cozy café around the corner (on 16th) still is our favorite place for delicious breakfast or brunch... Think they have tons of meals on their menu, quite affordable for huge portions.. Plus, good music.
This is a pro tip, but also a summer tip, take the ferry from Lower Manhattan to Rockaway and spent the day. The beach is great and the area is impossible to gasp that it's 30 min from Manhattan (without traffic) - Eat as many tacos you can, cause it's the best in the state of New York!