For bringing liquid items on a plane, follow 3‑1‑1: ≤3.4 oz (100 mL) in one quart bag; larger liquids go in checked bags, with limited exemptions.

Carry-on liquids must be in 3.4‑oz (100 ml) containers inside one quart‑size bag; medical and baby‑care liquids can exceed this with extra screening.

Liquid items in checked baggage are allowed within safety rules; banned are flammables, >70% alcohol, and hazardous aerosols.

You can bring most daily items on a plane, but liquids, batteries, aerosols, sharp tools, and bulky gear face size and safety limits.

Banned on a plane: explosives, fuels, fireworks, strong chemicals, and many weapons; others face strict carry-on or checked-only limits.

Carry-on baggage bans include liquids over 3.4 oz, flammables, weapons, many sharp tools, and spare lithium batteries over set limits.

Checked baggage bans spare lithium batteries, power banks, e‑cigs, fireworks, gasoline, strong chemicals, unsecured lighters, and loaded firearms.

Carrying cosmetics on a plane means liquids in 3.4‑oz containers inside one quart bag; solids and powders are fine, and aerosols must meet size limits.

Cosmetics in carry-on follow the 3-1-1 liquids rule; checked bags allow full-size items, but aerosols, flammables, and sharp tools have extra limits.

Yes, you can bring wrapped presents through TSA, but any gift may be unwrapped if screening flags it, so gift bags are safer.