In addition it's inexpensive because these bottles can be used in another capacity. In order to create nice clean bottles, remove the sticker label by using dishwashing detergent, or any adhesive remover.
Be creative by painting the bottles or use chalk board paint to label the watering pots.
|Wash out bottles and remove labels|
|Use Dif to remove labels|
|Use bottles with spray nozzles or spouts|