I could never get it to work.

One time I thought I got it to work and changed all of my friends to cats, but then I realized if I were really lucid dreaming I would have done other things than change my friends into cats.

Other times I could tell I was dreaming thanks to the lightswitch trick, but I couldn't go farther than the acknowledgement that I was dreaming. I couldn't actually do anything. I tried with something that I thought was simple: Changing the color of a room. My dreams usually take place in the night time for some reason, so I thought I could change between morning and night, but that never worked. I could also never fly in a dream.

Sometimes the lightswitch trick doesn't even work. One time I remember dreaming that the lightswitch was broken instead of realizing that I'm in a dream world. The fingers trick doesn't work as well. I try pulling my fingers, but they don't extend like others say they should, so it oftentimes makes me think I'm awake when I'm not.

I suppose the best tip I know of is to keep a dream diary. Not just for lucid dreaming, but also to keep track of your dreams, since some really interesting shit happens in dreams. I can't even begin to explain what goes on in some of my dreams. It's amazing what stuff your mind can come up with.

All the other tricks tend to not work for me that well, but I guess it's like anything else; If you really want something and work for it, you'll get it. If you spend time thinking and trying to lucid dream, you'll get it.