When full of neatly-folded clothing, a loaded Ziploc Space Bag looks like a stack of pancakes or even the hair-do of a certain presidential candidate. The purpose of the bag is to allow 70% more space in your travel luggage.

Back to basics. When you’re packing for a trip, start by putting everything you absolutely need on the bed. Then, as reality hits you, take away half of the stuff. Stack your clothes neatly in the bag, zip it almost closed, then press out all the air. This process makes your clothes more compact and therefore easier to pack. Bags cost from about $7 each.