Fast/Easy Alchemy Level Up:

I did this post patch, but it should work just as well pre patch. Now I should clarify, this won't be as much fast as it will be easy. When you have an ingredient in your inventory (I suggest using one that is beneficial to your health, fatigue, etc. that way you don't kill yourself or something.) duplicate it with either the scroll method, or the arrow method (depending on if you are pre or post patch.). Then pick up all of the ingredients, and eat them. NOTE: make sure you eat them raw for best effect.