Going back to basics with travelling light here.
Whenever we go away, I always take two makeup bags. One for actual makeup, the other for 'other' bits. Haircare, skincare, toothcare.
These are the usual bits that make it into the 'other' bag - my toothbrush (and holder) with a tiny tube of toothpaste, decanted shampoo and conditioner (I got these little bottles for about a quid at Wilkos), heat protectant and hairspray (the ultimate combo) and finally facewash, bodywash and a moisturiser.
It's a failsafe combination of products that mean I can be whisked away whenever chance fancies it.