Product review (5 stars): Great concept!
I can't tell you how many times the question "Are these clean or dirty?" is spoken in our home. What a time saver this!  I adore golden retrievers and I smile every time I use this. The magnet is very strong and can be a little difficult to use. It has to be that strong or it would land on the floor when the door is opened with too much force (children). This small, inexpensive magnet pays for itself every day. I highly recommend it!