Paris is by no means a 24/7 city, so planning your days beforehand can save you aggravation. Museums are closed one day a week (usually Monday or Tuesday), and most stay open late at least one night each week, which is also the least crowded time to visit. Store hours are generally 9:30 or 10 am to 7 or 8 pm, Monday through Saturday, though smaller shops may close for several hours during the afternoon. For the past few years, “Yes Weekend” demonstrations by workers have encouraged the government to relax laws banning stores from opening on Sunday; shops are now permitted to open 12 Sundays per year at the owner’s discretion rather than the previous five. Stores in tourist areas are exempt from these restrictions, so the best spots for Sunday shopping are the Champs-Élysées and the Marais where most retailers open around 2 pm.