On my way out of the house this morning I felt regretful about choosing to leave my bike inside and take transit instead, and mild frustration about biking in yesterday morning but taking transit in the evening (severe weather alert).
Then as my bus crept down the street I watched a braver cyclist than I in hi-viz absolutely bail in the zero-traction slush. (Almost stopped at the time; they got right back up instantly, apparently unfazed.)
Feeling a bit less regretful now.