Wuss Lipstick and Spice Lipliner (1st purchase at MAC ever).
Since then I had went through approximately four tubes of Wuss and it was the color I wore every single day for 2 years. The thought of having 20 different lipsticks and 20 different glosses like I have now would have been unbelievable to me back then, I thought Wuss was the absolute ONLY COLOR that "looked good" on me.
I bought my first MAC products waaay back in 1999. "O" lipstick and an eyeshadow that was a medium greyish purple colour that shined pink. I can't for the life of me remember what the shade of e/s was called, but it was ugly.
First purchase was a lip pallette. I thought it was the most beautiful thing. I only used it a few times as I didn't want to wreck it. It was so beautiful - Still is