Ten mason-jar projects that actually get used, not just photographed for Pinterest. Each doable in under an hour.

1. Overnight oats containers. Rolled oats, milk, yogurt, fruit, chia. Pre-make 5 for the week.
2. Salad-in-a-jar lunches. Dressing at bottom, sturdy vegetables next, greens on top. Shake when ready to eat.
3. Herb water infusions. Cucumber, lemon, mint. Prettier than a bottle, same function.
4. Candle holders. Tea lights inside, gravel or sand around the base, burlap tied around neck.
5. Soap dispenser. Add a pump top ($3 on Amazon). Fits liquid soap better than most bathroom fixtures.
6. Desk organiser set. Three jars: pens, paperclips, miscellaneous. Label the lids.
7. Gift cookie mix. Dry ingredients layered in a jar, instructions tied to the lid with twine.
8. Firefly lantern for a child's room. Punch holes in the lid, fill with twinkle lights.
9. Bathroom storage. Cotton swabs, cotton balls, bath salts — matching jars make a cluttered bathroom look organised.
10. Spice jar set. Identical-size small mason jars + labels on the lids = instant custom spice rack.

Ten projects. None require craftmanship; all produce something genuinely useful. Mason jars work because they're cheap, durable, and identical — all three qualities serve functional DIY better than fancy glassware.