away, even if it is only for the weekend.
do not underestimate the power of the carry-on. it is your opportunity to have a few basic items that you can use at all times at a short reach. first of all, it is best to carry a small snack and water: you can get thirsty and hungry at any time! also, you can carry a scarf (even in summer: you never know what the weather can be!) and clean underwear… let’s just say that luggage gets lost and you want to have the minimum to survive while they find it.
always leave some free space. after you have packed everything, unpack about 