This short article is a double shameless plug for 2 related items that we have used on several trips and have found to be well made and very useful. They are both security items that can help prevent your stuff from being stolen if you are on a beach vacation or just if in a hotel for the night. They are both made by a company called Pacsafe.
Sometimes rental houses and hotels come with a substantial safe and sometimes not. If you are lacking a safe, the Travelsafe can really come in handy. There are a few sizes available and I believe we have the smaller size. It is a tough bag made of some fancy nylon and reinforced with steel mesh. You can get a sense of the size from the 1st photo (though I don’t know why you would lock up a magazine in a safe!)