Start with yesterday morning. Think about what you actually put on, where you put it on, and the one thing you wished you’d had handy.
Lay out a morning’s worth.
Set out the products you used on an ordinary day. If mascara and lip color did the job, those two pieces can be the core of your kit. Add complexion products only where you like the coverage.
Give each extra a reason.
Choose one change you would enjoy making. A different cheek color can take a familiar look warmer or cooler. A pencil gives you a more defined eye. Look at what you own in that category before bringing home a second version.
Pack for the place you apply it.
Try your routine with just the contents of the bag. Notice if you need a mirror, a sharpener, or the brush you usually leave on the counter. Those little omissions matter more than a spare shade you rarely wear.
Try the kit on a regular morning before buying anything to fill it out.