Best Buy offers the Altec Lansing Baby Boom Portable Bluetooth Speaker in several colors (Black pictured) for $9.99. Plus, My Best Buy Members net free shipping. (Not a member? It's free to join.) That's the lowest price we could find by $20. It floats and features IP67 water resistance, up to six hours of battery life, and two 1" neodymium drivers.
Vinegar is arguably the most versatile product in your house. If you aren't using it for all of these purposes, you're probably wasting money.