Space cubes are a great way to stay organized and save space, but if you don't have them, there's a simple solution.
"My best packing tip for swimsuits and toiletries is inexpensive Ziploc gallon-size bags. That way, if shampoo leaks or anything else, it will not get all over clothes. Depending on how long the trip is I place new Ziploc bags flat at the bottom of my suitcase so that I have extra for other little things that I purchase during my travels," says Susan Fogwell, a flight attendant.
Try packing cubes like the TravelWise 5-Piece Packing Cube Set ($25, originally $50) that allows clothes to stay folded and neat when packed in their own small drawers. The cubes are fantastic for staying organized on both short and long trips to help travelers avoid overpacking and compartmentalize similar items such as shirts, pants, swimsuits, and electronic accessories to streamline packing.
While you are at it, also pack something for that wet suit, such as Aloha Collection bags, a line of splash-proof travel pouches perfect for stashing wet swimwear on the go or keeping your dry stuff dry at the beach or pool.