Accessories to help lucidity

I am now using a chain-bracelet which i tighten a little to see if it hurts (like the pinch-RC method), and i feel that it’s a pretty good way to remember to do RC:s during the day.

Do you have any kind of “thing” you use to remember to do RC:s, or to look at in the dream and understand that you are dreaming?

What do you think? Is it a good way to get more successful LD:s, or do you have any other thoughts? =D