I just wanted to share a few things that I have learned from some of my training lately :)
To keep everything completely hygienic you need a few essential items.
First, you need brush cleaner, pencil sharpener and at least 70% alcohol. The brush cleaner helps to sanitize, wash, and condition brushes while the alcohol can clean makeup products like lipstick. There are plenty of brands of good brush cleaner, what i generally use is the Mac brush cleaner because its very available and priced fairly. Pencil sharpener is essential because once you use a pencil you must sharpen it so that only new product is showing.
(you don't by any means need a nars one, this just showed that you want a big and little opening)
For sanitary appliance there are a few basic things need.
Palettes and spatulas are completely necessary. To scoop a product like lipstick, lipgloss, creme blush, cream eyeshadow, or anything that is not completely solid, you need a spatula. You must apply the product to a palette so spatual isn't contaminated with dirty brushes which in return will contaminate your products.
I hope you all found this to be a little helpful! As always if you have any questions please message me or leave me a comment :) I always reply!
Have a wonderful rest of your day!