What the Fluff? is happening this weekend. Celebrate 10 years of celebrating the sugary spread from 3 to 7 p.m. this Saturday in Union Square.
Keep in mind there will be some traffic changes on Saturday during the festival:
Somerville Ave., between Prospect and Webster, will be closed from 1 to 8 p.m. During the closure, Prospect and Webster will both be converted into two-way streets. Bus routes through Union Square will also be rerouted. See mbta.com for more details.