If you're a foreigner in Holland and you happen to speak dutch a little. You can go to www.9292ov.nl or from mobile phone: mobiel.9292ov.nl
It helps you in giving travel advice specially if you're using public transport.
A little tip on it:
Just type in the street where you are in "straat" and city in"plaats" and then your destination under "naar" column (address and or city).

The result will give you an quite precise schedule and what transportation to take for your most convenient. Even the price of the train or bus ticket.

I used this website all the time.