Very convenient!
I haven't used them yet, but so far I love these little TSA toiletry bags.  Adding depth to them makes it so much easier to pack lotion and make-up bottles, and keep them from slipping around.  The vinyl seems sturdy enough to withstand several trips.  Another "feature" I discovered, quite by accident, is that they make nice bags to take to sports events that require all bags entering the venue be clear, a requirement that seems to becoming more common these days.
Rating: 5 stars