If you do, then why not take advantage of the additional shampoo, soap, lotion, mouthwash, shower cap, sewing kit, etc… and save them. They make excellent short term cleaning solutions to add to your bugout bag.
They are light-weight, small and easy to carry. Plus, they don’t take up much room and best of all they are FREE! (or, if you don’t travel, you can just buy trial size products at your local drug store)