False Outlets Are a Thing
Since burglars do not have a lot of time to do their ‘job,’ getting creative is always warranted. You can hide small sums of cash as well as jewelry in false outlets, something that would take them ages to find in most cases.
If they only have ten-fifteen minutes to spare, looking for something like this would be more of an afterthought. You can get these kinds of devices for just a few bucks online, and they are pretty convincing looking in most cases. You want to make sure they fit the mold of your house and do not stick out.