Fit(ter) in '15! Twelve months of fitness challenges

Every year I set a list of goals. Last year my sole fitness goals were:

...join a local running group, and survive the first year of baby-hood.

(That second one is harder than it sounds.)

This year my baby has grown into a speedy little toddler, and while I fit back into my pre-pregnancy jeans and my biceps are fierce (lifting a 24 pound child a hundred times a day will do that...) my middle is squishier than it needs to be and I ran a measly 225 miles in 2014.

It's just too damned easy to consider an afternoon at the playground a "workout."
I need a kick in the pants.

So... 2015 will be the
Year of the Fitness Challenge
1 year. 12 months. 1 fitness challenge per month.

Before we get started, some stats:
Weight: 143.8 lbs
Fastest* mile: 7:56 (Oct. 2014)
Longest* run: 4.9 miles (Oct. 2014)
Max pull-ups: 3
Max push-ups: 60
Max crunches: ?
Max plank: ?
*In past 6 months

I considered kicking this plan off with plank-a-day, 30-day yoga challenge, or a run-streak, but after querying my friends and running buddies, and spending waaaay too much time on Google, this full-body strength training challenge called to me...

I started yesterday with 60 push ups after a 4.75 mile run.

(Yes... I know the list says 100. And I'm not making excuses. But I did a full workout with 30 walk-down-push-ups on Wednesday. Thursday was supposed to be a rest day!)

Next up... 100 squats!