Ignore everything going on around you. Ignore the rain and the cold and the fact that your feet have been damp for the last 12 days. Relax your shoulders. Close your eyes. Let the Cave Singers’ warm folk rock songs about summers on the Jersey Shore take you away. Visualize yourself kicking the waves. As they play songs with soft, repetitive guitar riffs, picture yourself driving down an empty Southern road, fields of gold all around you. It’s dusk. There are fireflies. This will be the cheapest vacation you’ll take all winter. With Poor Moon and Rose Windows. (Showbox at the Market, 1426 First Ave, showboxonline.com, 8 pm, $18 adv/$20 DOS, 21+)