GoToob: Squeezeable, tube for travelling by HumanGear
Free of BPA & PC,. these are reusable silicone bottles for travel in 1.25, 2, and 3 oz sizes. Easy to squeeze, expands so there's no shampoo explosions in your bag. The medium size has a suction cup for sticking to a shower wall and the sleeve rotates moving a small window around showing content names of your choosing, such as shampoo, lotion, etc - no need from guessing or labeling. The wide opening makes it easy for filling and cleaning. The bottles are airline approved for carry-on and generally come in set of 3, though some retailers sell them individually. They aren't inexpensive at roughly $24 for 3 or $10 for one (though they can be found for cheaper if you do your online research), but they work far better than the travel sized bottles you find at drugstores.