Don’t sweat it, your dreePro will handle this for you! We separate by color with every order. If you would like though you can separate your laundry into 3 groups within your XL dree bag to indicate how you would like your laundry separated. You can do this by placing your laundry in kitchen bags prior to placing in your dree bag. Also leave a note in your special care instructions indicating the separate bags are how you would like the laundry separated for the wash and drying process.