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Yes — a battery heated jacket is allowed on planes; wear or pack the jacket and keep the removable battery or power bank in your carry-on.

Yes — for flights, you can bring a blanket on a plane; TSA allows it in carry-on or checked, and airlines may count it toward your personal item.

Yes — BB guns may fly in checked bags only, unloaded in a locked hard case and declared; keep CO₂ cartridges out or empty.

Yes — Pringles are a solid snack, so TSA allows the can in carry-on and checked bags; be ready to remove it if an officer asks.

No — TSA’s 3-1-1 rule caps carry-on sunscreen at 3.4 oz (100 ml) per container; a 6 oz bottle must go in checked bags or be swapped for a travel

Yes—at most airports a 200-ml liquid can’t go in carry-on; pack it in checked bags (or use lanes that permit up to 2-litre containers).

Yes — 70% rubbing alcohol is allowed: 3.4 oz (100 ml) per bottle in carry-on, and up to 500 ml containers (max 2 L total) in checked bags.

Yes, a 9V battery is allowed on planes; non-lithium 9V cells may go in carry-on or checked, while spare lithium 9V batteries must stay in carry-on.

Yes—100 ml perfume is allowed in carry-on under the 3-1-1 liquids rule and in checked bags within FAA toiletry limits.

Yes—JetBlue lets you bring a backpack as your personal item plus one carry-on; Blue Basic also includes a free carry-on across routes.