Our garage has been lit by two 60-watt incandescent bulbs for as long as I've lived in this house (over a decade now). Until recently, that never really bothered me. Now that I'm into woodworking, however, and now that it gets dark early in the evening, the lack of light really started to strike a nerve. In thinking about potential solutions, I initially thought I'd install some LED strip lights in the ceiling, but doing this meant I would (a) have to mount the lights to the ceiling and (b) adjust the wiring for the existing sockets to accommodate for these new lights.
I found a much better solution in these deformable lights, which I picked up on Amazon. There are a million variations of these, from a million different Chinese companies, but these were some of the cheaper ones I found. The lights simply screw into the existing socket, and you can then point the three paddles in the direction you desire. I haven't used them a ton yet, but wow, the difference in illumination is night and day. I highly recommend them. Here's a picture of our garage taken tonight, with no flash: