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security guides
A focused set of CarrySizer guides tagged security. Thin tag pages stay noindex until they have enough useful depth.
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Can You Bring a Laptop on a Plane? Yes — Carry-On
Laptops are allowed on planes and should always go in carry-on. Learn about security screening, battery limits, and traveling with multiple devices.
Can You Bring a Tripod on a Plane? Depends on Size
Small travel tripods fit in carry-on bags. Full-size tripods must be checked. Here's how to tell which category yours falls into.
Can You Bring Hand Sanitizer on a Plane? 100ml Rule
Hand sanitizer is allowed in carry-on bags but must be 100ml or smaller. Full-size bottles go in checked luggage. Here's what to know.
Can You Bring Knitting Needles on a Plane? Mostly Yes
TSA explicitly allows knitting needles in carry-on. EU and UK do too. Australia is stricter. Here's the full country-by-country breakdown.
Can You Bring Pepper Spray on a Plane?
Pepper spray is banned from carry-on everywhere. Learn checked bag rules by country, legal restrictions, and safe alternatives for travel.
Art Supplies in Carry-On: What Airlines and Security Allow
Which art supplies can go in your carry-on? Paints, brushes, palette knives, charcoal, scissors — rules by material type with tips for traveling artists.
Medications in Carry-On: TSA & Airline Rules 2026
Prescription meds without quantity limits, insulin and needles, oxygen concentrators, CBD legality by country, and custom declaration at borders.
10 Carry-On Mistakes First-Time Flyers Make (And How to Fix Them)
The most common carry-on errors new flyers make — from ignoring size limits to keeping laptops in the bag at security — and exactly how to avoid each one.
Traveling with Money and Valuables in Your Carry-On
Cash declaration rules, why jewelry always flies carry-on, and how to protect laptops, passports, and valuables at 30,000 feet.
Jewelry Through Airport Security: Complete Rules Guide
Do you have to remove necklaces at TSA? What triggers body scanners? How to pack jewelry in carry-on without tangles or theft risk.
Flying While Pregnant: Carry-On Rules and Packing Tips
Airline rules for pregnant flyers, when you need a medical certificate, and the best carry-on items for comfort and safety in the air.
TSA-Approved Carry-On Toiletries: Full Checklist 2026
Complete list of TSA-approved toiletries for carry-on bags. What passes security, what fails, and how to build the perfect 1-litre quart bag.