I am going to challenge you to spend the next month recording your numbers. All of your most common product/supplies. Record when you open a new top coat or nail liquid for example. How many fill in and full set services you complete with a jar of acrylic so you can see how often you need to be reordering product and your average per service. If you want a copy if the spreadsheet that I use email me at nailaddictsnakita.com. For more info and tips check us our on social media. <3