I have a few oils; I don't use them often. I keep forgetting to drop a couple drops into my bath water.
I have Clove Oil, Mandarin Orange Oil, Peppermint Oil, and Rosemary Oil.
I have a little glass cup on my altar, that I occasionally put some water and a drop or two of oil in. I LOVE the scents of all three individually, and I'll occasionally combine the clove and orange.