I'm with Till on this!

... and if you ever come to Europe you can forget your current practice. It is every liquid in a plastic bag and out of the hand baggage. When seen on the xray still in the baggage you will find your bag gets secondary screening and your baggage then goes through again. Not only will you be held up, but I will behind you too!!

I also have a favourite leather wash bag which I have had over 30 years, but is now saved for very rare car journeys - and only then if I can be bothered to remove the items from the plastic bag that they live in during the week!