Vanilla Bean PASTE - my new favorite thing in my kitchen. It's actually more of a syrup than a paste. Adds a really warm, rich vanilla flavor. Not inexpensive, but cheaper than buying vanilla beans, which it substitutes for in baking and cooking.
Homemade Vanilla Extract - Mindlessly easy and so much cheaper & more flavorful than buying store bought vanilla! Makes great gifts! Link includes education on different types of Vanilla extracts for cooking.