Airlines lost 42 mil­lion items of lug­gage a YEAR in 2007. That num­ber is expected to rise to as much as 50 mil­lion by 2011. Which begs the ques­tion, what’s a trav­eler to do? In this arti­cle, we’ve included tips to help you avoid hav­ing your lug­gage lost and what to do if it is.