Low Tech Lap Counting

I swim for exercise but hate keeping track of how many laps I've completed. I searched for a lap counting solution and found waterproof sports watches and dedicated counters at $30 and up. Those were overkill for what I needed, so I developed my own counting system that works great and costs pennies. Now I can spend my swim time thinking or unwinding instead of counting.

Step 1 What you will need

What you need:
- 4 rubber bands that fit comfortably around your wrist. You can even hijack the kids' sillybandz for this.

Comments

[Earthborn]

Very good thinking. It should be noted that this idea can easily be adapted to use the binary system, which would allow you to count up to 31 on one hand, and 1023 on two.

[rimar2000]

Clever!