To clean your knitting bag, you will first need to remove all items in the pockets and main area of the bag. Next, grab a clean cloth and put a small amount of water on it. Once it is a bit damp, take the cloth and wipe the inside of the bag. Make sure not to put too much water, the cloth should barely be wet. Then, if you see areas where cleaning is needed. Take another cloth and add a drop or two of liquid detergent. Rub it into the cloth and scrub the stain with it. Finally, allow the bag to dry completely before using it.