7Flushing Toilet Paper

Do not — under any circumstances — flush toilet paper, feminine products, or anything beyond human waste down the toilet on any Greek island.

This will wreak havoc on the very delicate plumbing system on the islands. As World Nomads explained, Greek sewage pipes are approximately two inches in diameter. That is about half the size of both American and British plumbing, meaning it’s very easy for the pipes to clog or even rupture. Instead, place all garbage and used toilet paper in the small bins beside every single toilet.