Quick Wizard Cards
You can find fast wizard cards in the Burrow and Diagon Ally. Look for chests. And 
a very fast way is doin Neville's games. Mostly Broom racing. It costs beans for Racing 
and Gnome Tossing but it doesn't for Gnome Dunking.

When sneaking around at night, I haven't found an easier way to get pass the prefects in the 
entrance hall, but for the one on the seventh floor, and so you don't have to wait for the 
stairs to come your way while you get beat up by ghosts and lose Bertie Botts Every Flavored 
Beans. After you exit the Gryffindor Common Room through the portrait, turn left and walk to 
the bookshelf closest to the wall you just came out of, and there is a crawl hole under the 
bookshelf. Crawl through and inside you'll find a stairway that will take you down to the 
fourth floor, and a chest that if you have the Alohomora Spell (you can obtain this spell from 
George and Fred for 80 Bertie Bott Beans) you'll get a wizard card (I think, you open a lot of 
chests in this game it's hard to remember what you get in every one).
Submitted by Cowgrl8286