I try to stay minimal in terms of volume, and for me, that means ditching most redunancies when traveling with one bag. I replace the electric shaver with a simple disposable razor, and I only pack one CeraVe SPF face lotion that I use for my hands if I need it. For doing laundry in the sink, I use a cut-down bar of Zote pink soap in the Matador dry-thru soap bag.
For my dry goods, I use this Sea to Summit hanging toiletry bag which I bought for ultralight camping. This thing is super light and has plenty of great organization for being so tiny. For the 1 quart liquids bag required for airline travel, I recently upgraded from a ziploc bag to this generic, durable, clear-sided plastic bag with a zipper and handle. I attach a small carabiner and clip the handle to the hanging bag if I don’t have space by the sink.
What are your favorite toiletry tips?