There are two kinds of travelers: those who have forgotten something in a hotel or on a plane... and those who eventually will. Between rushing through airport security, checking into hotels, charging devices, and keeping track of passports, it's surprisingly easy for even seasoned travelers to leave something behind. Hotels, airlines, and airports process countless lost-and-found reports every year, and while the occasional forgotten wedding dress or pet lizard grabs headlines, the 12 top items are more familiar.