Never before had I celebrated Halloween (oh actually i did once, but it was a disaster with a capital D). However here in Amsterdam everyone seems to be quite hyped about it. Its a celebration I would advice not to go to clubs but stay in student dorms or find house parties this way you will just save so much time of standing in lines since its a pretty busy night.
Last night I actually got quite sick and I also have exams on Monday so I just decided to stay in my dorms and celebrate a little. My costume was absolute last minute decision and probably the most boring costume anyways.