This is a test of commonsense. Complete the next sentence:

How to pack a preschooler's bag for an airplane trip
First, get a small, portable backpack on wheels for the toddler to carry and a larger bag.
Get 5 pairs of trousers and 5 tops for every week your going.
If it's a girl, get some tights and dresses and 4 jumpers.
Stuff all shoes with socks to save space. Get only a few, comfortable shoes.