After you have completed Your first duel with Draco Malfoy,You will see a contestant standing in the room with a painting.Challenge the contestant and win the contest.Do this repeatedly till you reach the last one.After that,duel the last one repeatedly(he will charge you 200 beans)and win that competition.You will get more than 200 beans repeatedly.Hope you will appreciate my idea.
Right after you get tricked and broke the bridge and fell into the mushroom pit, go to the first spider web blocking the path. Go to the very right edge of it, and you can walk right through. The spider will not act until the web is cut. Also, right when you go to the first spongify tile right after this, just try to manipulate your landing so you can land on the very bottom branch. This saves time, but loses stamina.
When you are in the Skurge challenge, go to the part where you have to cast skurge on the two snail platforms, then you have to push the snail onto them in order to open the door. Well, just cast skurge on them, then jump on the platform yourself, and climb back up, but make sure that you don't get stuck down there and lose time.
Spongifying on the window and buying mucus while dead
Added 6 Feb 2011, ID #15856
When you go to the grand staircase, cast spongify on the center tile. When you go up, skip the cutscene if you haven't already got the card up there, and jump on the window with the floor below it. Next, jump down next to the slytherin selling mucus. You will die, but then you will suddenly spring back up and buy some mucus, but when she runs out of stock, then you will be dead.
Without Debug mode, explore the Grounds thouroughly
Added 6 Feb 2011, ID #15855
When you go outside to the grounds, go to Hagrid's hut. When you are in the pathway, right when you start to see the dirt path, immediately turn right. Run up the slanted dirt area, and jump right before you can't go any farther into the dirt. If you jumped good enough, you will just stand on a thin line of dirt. Walk to your right, and jump. There will be an invisible box that you can jump on right next to the fire torch on the left. Then jump on the cement platform above. This allows you to go on most of the unused land on the grounds area.
When you are in free time in the Hogwarts Castle(Not in a lesson or a mission)Go to Guildroy Lockharts room (The defence against the dark arts classroom)and at the far end of the room there should be Guildroys Chair. Try to jam yourself on top of that and then jump onto the balcony and on there should be about 25-30 beans. Hope I Helped Happy Gaming ;-)