This might seem odd, but some of my favorite videos from beauty vloggers on YouTube are their product empties videos. If you think about it, you're really just watching someone go through things they need to throw away, talk about whether or not they liked it, and tell you if they'll be buying it again. A strange thing to like watching isn't it? It's hard to use up a full product, especially makeup, so I think they're pretty fun to watch.
Here's my most current video of product empties!
What products have you used up completely and loved?