Most people clean their bathrooms regularly and still wonder how cockroaches manage to appear out of nowhere—especially in the shower. These pests are drawn to warm, humid spaces, and bathroom drains provide exactly that. What many homeowners don’t realize is that a simple trick using an everyday party balloon can create a barrier that helps keep insects from entering through the plumbing. It sounds unusual, but it has quickly become a favorite low-cost method for people looking to protect their bathroom with minimal effort.
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