When flying, avoid salty foods as they can cause your ankles and joints to swell. If you are prone to air-sickness, ask for a seat in the wing area, the most stable section of the plane. When using a rental car, try to get a car you are familiar with. Never leave your bags unattended. Keep them always within your sight.
Crowded areas invite criminals, who create distractions.
Stay alert in crowded areas. Try to pack color-coordinated clothing. You will have more looks for less space. Use car seats when traveling with small children on planes. Children are used to sitting and sleeping in them and they will be safer.