We all Avent range for our baby, no one changes. However, despite the Avent brush, the bottle can remain dirty on the sides, so always check against the light to see if there are traces ... Another point, the stopper, which is well sealed, which is never going to unscrew in your handbag. By good luck against to open with wet hands! A real battle! Personally, I would have screwed, not clipped. But hey, it's a great product!
