1. Hair and Body Bars
Starting with your toiletry bag, substitute liquid shampoo, conditioner, shaving lotion, and body wash with bars. BONUS: you don't have to worry about TSA liquid volume restrictions when flying.
2. Solid Toothpaste Bits
3. Reusable Bags
Pack a few reusable bags in your luggage. They'll come in handy when you're out shopping and heading to the beach or pool. These super lightweight bags by Baggu fold small enough to fit into your purse or pocket, expand generously, and are durable. There's tons of fun design and size options on their site!