I came up with this idea a while ago, but I haven't been able to implement it until now. I'm not sure if this idea has been used by other cachers, but I haven't seen it, so I guess I'll give it a try.
"So what is so different about this cache??" you might be asking.
In each of the caches (except the very last one), there is a QR code inside of it, that will give you the coordinates for the next cache. It may also give you a hint, if I found that a hint would be appropriate.
What's a QR code??
A QR code is an image that can be scanned by a mobile device. It is similar to a bar code that is scanned when you go shopping. It can show a text pop-up, go to an Internet URL, or send you a text message. Here is an example of a QR code:

How do I scan it?
You will need a mobile device with an application that scans QR codes. You can usually download them for free. For example, I use the QR Reader app for the IPhone. It's 100% free to download and it works great. I'm sure there are other apps for the Android and other phones. To test it, scan the above image to see if it works.
So, this is how it works: You find the cache, you open it, and you find the QR code. When you scan it, a text pop-up will appear, with the coordinates for the next cache. Cool, huh?
It may be a good idea to bring a pen and a piece of paper to write down the coordinates when you scan them. If you have trouble scanning the code, try rotating it, and bringing it closer/further to the camera. If it refuses to scan, email me a picture of the QR code, and I will give you the coordinates
Original final cache contents:
- Political bumper sticker
- 2 buttons
- $2 of nickels
- Guitar pick
- Geocoin
- Log and pencil
As always, rehide the caches as well as you found them, and watch out for muggles! Have fun!
P.S. The caches are NOT within walking distance of each other.