I've been wanting to go to the Ghibli Museum for a long time and since I've finally made it to Japan, I had to go. You have to make reservations ahead of time to go to the museum. I had to "order" my reservation online. It cost 1000Yen which is about $8.50ish. Mitaka is in the outskirs of Tokyo and I still wasn't used to the crazy metro/train lines of Japan so naturally I got lost and turned around once when I had to transfer. I eventually made it on the one day that it didn't rain.