How Long Does Makeup Last After Opening? A Chart by Product
Period-after-opening windows for mascara, foundation, lipstick, powders, skincare and sunscreen, where the symbol is on the pack, and what happens past it.
What lasts, what to write down, and what to finish
Period-after-opening windows for makeup and skincare by product type, why a diary of products beats a diary of routines, how project pan works without turning into a chore, and how to sort a collection so that the good things get used before they expire.
How to Keep a Skincare Diary You Will Read Next Year
What to record about each product so the diary answers 'which one was it?' a year later — and what to leave out. Paper, notes app and a shelf app compared.
How to Organize a Makeup Collection So You Use What You Own
A sort-by-use method for makeup and skincare: what stays on the counter, what goes in a drawer, what to bin by period after opening, and how to keep a record.
Project Pan: How to Finish Your Makeup Without a Spreadsheet
What project pan is, how to pick the products, how long it takes to hit pan, and how to keep the record so the empties tell you what to rebuy.