I think that some mods are clear winners where as others are questionable.

It would be great to share the "no brainers" with the group.

My Polar Bear bumper step that is offset for parking distance is a no brainer.

The Ice system for a IPOD is probally close a "no brainer" but I wish it cost $100 dollars.

What do you think, do you have a "no brainer" to share?