Protect your glass items
Some people like to travel with perfume bottles or buy one as a present when they come back, but we all know how risky it can be to throw a glass bottle inside a travel bag. A broken bottle of perfume can make a mess with your clothes and be risky when unpacking.
Placing them inside your clothes, especially socks, is a great idea. They will be contained in case of an accident and have an extra layer of protection to resist any kind of blows.