1. Go DutchYes, please pay for your own food. But this time, I mean Dutch food. I tried the Dutch pancakes over the usual European desserts I love. And I totally loved them. Dutch pancakes are tiny coin like cakes, served with syrup and topped with sugar. They are delicious and a definite recommendation from me.
2. When in Holland, be a Biker!Rent a bicycle is probably the best advice anyone gave you when you visited Amsterdam. I go by it. Except, I would skip the touristy inner city of Amsterdam which is walkable. My friends did a bike tour from Amsterdam to Harlem, 20 kilmeter ride. The two hours that you might cycle will pleasantly surprise you with bicycle tracks along the highway. Worth a shot, in my opinion.
3. Vondel ParkIt has got to be on your travel itinerary. And very justifiably is.
Vondel Park is in the heart of Amsterdam and the biggest public park in Amsterdam. Around it are the most famous Van Gogh Museum, Rijks Museum and some more museums.
The interesting part about Vondel Park is to see Dutch life pass by. Put on those running shoes and take a jog in the mid day. It is lovely to see the locals jog it up and live their life in this wonderful park.
Also, there are plenty of public events for free during Summer at the Vonder Park Open Air Theatre.