Tarragon oil - one of my little secret weapons. Use it as a finishing oil on soups, as a component of anything bread-centric, and as a vinaigrette base. It's vibrant green with grassy anise notes, and just the sort of thing to keep on hand.
I spent Saturday brewing beer with my brother-in-law. For dinner, later on, I brought a simple lasagna, using this golden tomato sauce as the base - garlic, red pepper flakes, and olive oil. That's it. It's good on pasta, pizza, and only takes a few minutes to pull together.