Regardless of what class you're flying, check-in at the airport comes with its fair share of nuisances. There's rushing to cram everything into a plastic container and walking through the security line barefoot. But nothing compares to having to toss out your favorite perfume because it's over the 3.4 liquid limit. Nothing. To help you avoid holding up the line or tossing anything valuable, we ranked our top travel-friendly sized products so you can sail through security, worry free. Click ahead to see the top picks!