Reduced the clutter, awkwardness, and bulk of my keys by a significant amount. I own four cars and two homes, I have more keys that you can shake a stick at. I started on buying one for my truck, but might need to invest in some others. Being a man you also don't want tons of extra bulk in your pockets all the time. For $20 everyone should own this. The install is a little slow if you are a perfectionist but its worth it. Great invention!