Each airline has its own rules on weight restrictions around cabin baggage, but a common limit is 7kg per passenger. This is sometimes only for the cabin bag, but with some airlines it’s a combined total between that and a personal item. Always check the hand baggage restrictions of your chosen airline.

Again, some airlines will weigh and measure cabin bags, but others don’t. If you’re checking in bags, you’ll often have your other bags weighed at the same time. Some airlines, especially budget carriers, check at the gate before you board. Once again, ensure you follow the hand baggage rules of your particular airline to avoid fees.

A “personal item” is normally something small enough to fit underneath the seat in front of you. Although definitions can vary from airline to airline, common items include handbags, laptop bags and camera cases.

The number of pieces of hand baggage you can take on board varies depending on the airline and your ticket class. Most airlines, such as Air France, British Airways, and KLM allow one carry-on bag plus a personal item (for example a purse, laptop bag, small backpack). However, other airlines, including Air India, IndiGo, and Emirates only allow one cabin bag per passenger with no additional personal item.

Yes, but with restrictions. Liquids, gels, and aerosols must be in containers of 100ml or less and placed in a single, transparent, resealable plastic bag (1 litre capacity), to get through airport security. Once you’re through, you can buy larger liquids, such as drinks and lotions, which you can take onto the plane. It may be that these need to fit into your cabin bag to be allowed on board.

Yes, but they must be in your cabin bag, not checked luggage. Some airlines may have specific power capacity restrictions. Check with your chosen airline before travelling to ensure you follow their regulations around power banks and electronics.