I started everything using a simple device to track my steps each day. A pedometer is pretty inexpensive. Some of them are extremely cheap, but break easily.
I use the Sportline WA-340 pedometer
I know they had them at Dick's Sporting Goods... But if not any longer, you can get them online. It's inexpensive and VERY ACCURATE and DURABLE....http://amzn.to/9OwHHr
The above is an Amazon Affiliate Link