If you read the Bible, and especially if you study it, then you'll probably find yourself spending a fair amount of time flipping around looking for the verse you wanted to read. They sell Bibles that have this built into them but you may not want to buy a new one just for this feature (and a lot of times you'll get used to reading a particular Bible and jot notes in it... and want to keep the same one). About 10 years ago I learned this trick to help you quickly find the verse you want--it's called indexing the edge of your Bible. I originally heard it called "Laddering your Bible" but it doesn't look like a ladder at all, more like stairs.
One thing to note is that this tool doesn't help you with the order
of the books necessarily so if you don't have an idea of the general order then this tool may not help you much. If you have a general idea of the books of the Bible then this will help you open up the Bible within a page or so of where you want to go.
You will need:
Any Bible, but a soft-back works best
pencil and eraser
fine-tip black permanent marker
If you like this tutorial, check out my blog for 50+ more "how to's": johnfixesstuff.blogspot.com