Packable travel bag

I keep an Infinity packable travel bag in my suitcase for trips where I know I’ll be bringing more home than I left with. It weighs just 260g and folds down to almost nothing, so I pack it empty and only unfold it when I need the extra space. It slips over a suitcase handle for rolling through the airport, has interior pockets for small stuff, and stands up on its own so it’s easy to load. — MF