This attractive 22-inch taupe suitcase normally runs for $54, but you can shop it for $31 for a limited time. Kensie Graceful Hardside Carry-On Luggage, $31 (was $54) at Amazon.

Pack a small, separate bag for toiletries. (Liquids, gels and aerosols packed in carry-on must follow the 3-1-1 liquids rule: ...