What are some hints about carry-ons vs. checked baggage?

If you need to bring liquids/gel/lotion/toothpaste that are bigger than 3.4 oz/100ml or you have too many to fit into the quart size bag, just buy new ones at your destination instead of carrying them with you. Not knowing if you're male or female, as long as you bring basics like a pair of black pants plus a matching jacket, then a few tops, everything should fit into a carry on.

Two weeks with only a carry on? Pack enough underwear and socks for a week. Pack enough shirts and pants to fill your carry on - preferably darker shirts and jeans - with intent to wear more than once. Plan a trip to the laundry around the end of the first week or earlier depending on condition of clothes. Plan to buy any toiletries at your destination. Don't forget deodorant.

Carry on luggage is limited to 8 kg - around 4 pounds.