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There are many options out there for using NON-Nike+ shoes with your Nike+ sensor and iPod.
From pouches to a ziploc bag, all of the helpful hints out there do everything except replicate the original intent of using a hole in the foam section of the shoe under the sole.
This tutorial will teach you to create a Nike+ sensor hole in whatever brand shoe you have.
This example is for my wife's Asics which she likes much more than her Nike+ running shoes.
There are a lot of steps in this tutorial for the sake of explanation, but the process is fairly simple.
Credits - To Brian Devane for giving me MacGyver skills when I was just a wee lad,
which I needed to pull off such a project.
Step 1: Things You Will Need
1. The Nike+ Sensor Kit (UNOPENED... this is VERY important)
2. The left shoe of your favorite pair of running shoes
3. A Box Cutter or Utility Knife (With a new blade preferably)
4. Scissors (for cutting paper)
5. A Dremel tool with a sanding bit.
Step 2: Create a Template
If you think about it, the perfect template comes with your Nike+ Sensor Kit.
Follow the instructions with each picture below, and you will be on your way.
Step 3: Use the Template to Trace the Hole
Now you will need your box cutter, your template piece, your shoe, and a LOT of patience.
The more patient you are in this step, the better your results will be.
Follow the images.
Step 4: Route Out the Foam in the Hole With the Dremel
Use a sanding bit like the one pictured below. Normally you wouldn't think of "sanding" foam, but it eats away at the foam consistently enough for good control. That's the key.
Follow the pictures.