Never mind New Year’s Resolutions. Spring is it. Spring is the season when we all renew our vows to ourselves that we will become fitness gurus. Just now the timeline has shortened. We realize in a panic that since our Christmas bingeing we did not keep our promise to ourselves to stick to the detox/get a personal trainer/run ten miles every day. (Unless you did, but then stop reading, this post isn’t for you). We also realize in a dread sweat that we have a much shorter timeline now to get the rock hard abs we dreamed of. We buy…