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🢜 Remove excess air
Squeeze excess air out of the tube/bottle, then replace the lid | Air pressure change can cause gases to expand.
🢜 Cover the lid with plastic wrap
Put a small piece of plastic wrap over the top of a tube/bottle before screwing on the lid.
🢜 Use screw-top lids whenever possible | Avoid tilt-cap lids.
🢜 Store liquid/gel toiletries in a plastic/Ziploc bag.
🢜 Pack as many solids as possible
Solid shampoo, conditioner bars, body soap, detergent, toothpaste tablets, perfumes, mineral sunscreen sticks, shave gel bars, etc.