When I run, I use my Nike+ app on my phone to track my mileage, pace, etc.
About a week ago, I got an email from Nike with my 2011 Running Report
I also use it when I walk to get Austin from school or just take walk with the kids (I like to keep track of how many miles I walk and/or run each week) so my average pace is slower than if it were just tracking my running. I was pretty excited that my fastest mile was 8:17!
Since I ran 583 miles in 2011, I have set my goal at 800 for 2012. I am training for 2 half-marathons this year instead of one, so with the extra training miles, I'm sure it will add up!