Cubes, plastic bags, sacks of all sizes can help keep your travel bag organized – and so will these eco-friendly mesh ZizzyBee Bags that have a hook, let you see inside and come in a variety of bright, bold and fun designs. (3 bags for $19.99). They replace 1000 single-use plastic ziplock-style bags a year! CLICK TO READ more about the best eco storage bags to stay organized.