Are you familiar with the nasty sludgy, slushy, gray-ish, half-melted nastiness that litters parking lots everywhere? Yeah, that stuff. It's everywhere. Shoes, coats, pants - this plague knows no bounds. But if you're wearing white, it'd show up even more dramatically - yet the ones wearing white are always the ones immaculately clean, aren't they? Beats me how they do it. I guess they're not into snow angels. It's just like Monty Python and the Holy Grail: "Must be a king./Why?/He hasn't got shit all over him."
But if you're even the tiniest bit practical, you know that as idyllic and darling wearing white in winter is, it's also a ridiculous laundry move. If you've got a white outer garment in your possession, you've now assumed the responsibility to bleach and wash it often or risk looking like a vagrant with big dreams.
So, to save yourself the water, the detergent, the time, and the frustrated noises you'll be making as you throw your once-beautiful coat into the wash, buy something colorful! Don't confine yourself to the standard neutral palette. Experiment with shade - find something outrageous and go for it. After all, it'll be that much easier for more people to find you in the case of an avalanche. Or, you'll just be triply eye-catching as you slip and fall less than gracefully down into that very same dreaded slush.