If you like working in dark places, then this new wrench set should be a good investment. Seven wrenches, each with its own LED light between the jaws. According to the product page, these tools are best used in tight confines where illumination is scarce, i.e. under the hood of your car. The LED lights are rechargeable, so there’s nothing to worry about when it comes to running out of juice.
Note that the light settings on each tool can be changed to suit the task at hand. The entire set is on sale now at this location for $99.95. A little on the steep side, but ultimately not bad.
Of course, the next best alternative to having an illuminated wrech is a flashlight strapped onto your head, kind of like a coal miner.