Whenever you can buy a secondhand or vintage treasure for your home, we say go for it! Buying used is often an easy way to find inexpensive, high-quality and one-of-a-kind pieces. But in some cases, preowned or old items can be unsanitary, more expensive, and, in worst-case scenarios, dangerous. So the next time you scour your favorite thrift shop (or an antique store or garage sale), think twice about these items.