Street closures, Metro schedules, and what’s new about one of the most popular marathons in the country.

Welcome back to work, Washington. Perhaps you’re struggling to focus this morning, having only barely recovered from the weekend’s Halloween festivities. Perhaps you just had a difficult time extricating yourself from your bed on this first cold morning of the year. Whatever the case may be, DCist recommends a strong cup of coffee with a dash of Rumbler to get your motor running today. The Rumbler is described as a “high-tech blaster” being used in…