Retailers discussed how offering customers more delivery options like time windows and Sunday deliveries could improve the customer experience and drive sales. Using multiple carriers allows retailers to offer a range of delivery options at competitive prices and ensures consistent service. Parcel shops and locker boxes give customers control over deliveries and are increasingly popular, though ensuring security and inventory visibility at these locations is important. Carrier performance consistency is also key to building customer trust in online shopping. Environmental issues like pollution will increasingly impact delivery solutions, and aggregating deliveries across suppliers could help address some challenges.