Cleanliness is next to godliness. In make-up hygiene is sacred and it's the most important thing for me whether I'm working on my own or in a team. It's very hard to marry hating plastic and wanting to keep everything as hygienic as possible in your kit as the best way to work is using disposables and the majority of disposables are made from plastic. There used to be somewhere, The Pro Makeup Shop, where you could get ethical disposables for your kit. It has sadly disappeared and I can't seem to track any down. This is terrible. You can get them from US site Qosmedix who do bamboo disposables.
Although it is hugely important to keep everything in your kit clean and ensure your clients are at no risk it's incredibly easy to do. We all know about cleaning brushes but you need to make sure everything else you carry with you is clean too. Dettol wipes are really useful to have on hand - so good to be able to have a wipe around before you set up. Below are some of the things I always have with me.