Lightning!

Today was really stormy out. Good thing about it is the lightning!
I have been wanting to shoot lightning for a long time and nows my chance.

I setup a tripod and my camera in our garage. Popped in my 18-50 lens, and my wireless shutter release.
I set my shutter speed to bulb so I can control how long my exposures would be, and my aperture to f8. Since I can keep my shutter open as long as I can, I put my ISO to 100. That'll keep the image from over exposing when I keep my shutter open for like 4 seconds or more.

Lightning actually leaves an afterimage after it flashes. If you keep you shutter open for a couple of seconds after lightning flashes you would be able to capture it perfectly.

Since you don't know where lightning would strike, I would suggest using a wider lens so you'd have wider coverage for your shot.