I was going back over my 2010 Biggest Loser calendar where I tracked all of my mileage and exercise time. In total (approximate total), I ran 475.2 miles last year and exercised a total of 147 hours and 20 minutes. Perhaps that may not be as much as some serious runners or work-out-aholics BUT that's amazing for me!!
Now on to 2011. I have another half-marathon in mind for May. Who knows what other races will come my way. I'd like to do more of my exercise DVDs but keep up with my running. I noticed a rapid decline in my hours exercised once I started putting in more miles - so really I just worked out less and ran more. And I really do like the cross training it provides - AND I have a friend who wants to do some with me once or twice a week, so that will be a lot of fun. I'd really like to find a running partner this next year since I can't really run with my husband (often).
For concrete goals: I'd like to shoot for 500-600 miles and at least 150-200 hours of work out time.