One of my favorite storage containers is this 5.4 Qt. clear plastic storage box by Iris. I love that it's stackable and portable and that you can easily see what's inside. It's originally designed for storing shoes, however, I've discovered it's great for storing a variety of other things, too.
Here's my Top Ten List:
1. Nail Polish & Manicure Accessories
2. Small Lotions
3. Makeup (& other beauty essentials)
4. Art Supplies
5. Small Toys
6. Travel Size Plastic Bottles
7. Office Supplies
8. Small Candles (i.e. Tea Lights)
9. Hair Accessories
10. Sewing Items
What else can be stored in this very useful container?