Washio is a laundry delivery service that uses ninjas to deliver washed and folded clothes, with a focus on communication through SMS notifications powered by Twilio. The company, founded in 2013, has expanded to new cities and gained financial support from celebrities and VCs, and now offers promo codes for Twilio blog readers, including $10 off the first order. To use Washio's service, customers schedule a pickup, receive an SMS text with an hour's notice of their ninja's arrival, and receive another text when the delivery is ready to be picked up, all within a 24-hour turnaround.