As gas prices top $4 a gallon and people are becoming more and more eco-friendly, cycling to get around is increasing rapidly.

But biking in the city – especially at night – can be dangerous. And hand signals are for lame-o’s. Well Leah Buechley’s LED signal sweatshirt/jacket is the perfect solution.

There are step-by-step instructions on how to make your own possibly life-saving coats. Sometimes, the simplest solution is the best one.

Tags: fashionable, instructables, jacket, led