CRITICAL AND EXTREME RUSH DELIVERIES. 24 HOURS A DAY. 7 DAYS A WEEK. That's why RITENOW is the Courier Service relied on for shipments requiring speed and care. As Windsor's only 24/7 Premium Courier Service , we are committed to excellence, every hour of every day. Whether it is a small box or a skid, we are here to keep you covered. more... See more text