I love how small this place is, but it offers such amazing quality in cheeses, meats, wines, bread etc. You can also have lunch here. Definitely worth picking up fresh food here!
The city's biggest flea market is hosted the first weekend of each month in and around a gigantic warehouse in the industrial area of NDSM in Amsterdam Noord. I love to snuff around the hundreds of stalls to find unusual props. Taking the boat to cross the IJ and leaving the old centre behind is very refreshing. Make sure to also have a drink in Noorderlicht while the sun sets.