Ever wish you could be in two (or four) places at once? The next few weeks are full of FOMO, the fear of missing out. On Saturday alone, you’ve got hundreds of bands playing outdoors at Petworth PorchFest, seven D.C. museums offering special activities during Do the Loop day, DJs spinning dance music during Project Glow, the D.C. Cocktail Festival, a screening of “The Lord of the Rings” inside the National Building Museum, and cultural festivals from Purcellville to Suitland. On the same day, families can celebrate the reopening of the Glen Echo carousel with an afternoon of activities, or visit the D.C. Public Library’s book festival for young readers. Speaking of books, it’s also Independent Bookstore Day. Tough choices will have to be made, but at least you know some of your options.