Use a plastic straw heat sealed at both ends as a lightweight, waterproof way of bringing spices camping or on a picnic etc.
If you're a guy, give up smoking.
If your phone gets really wet turn it off and leave it in a bag or bowl of dry rice for 24-48 hours.
Strategy isnt what you do. Its what you dont do.
Be tolerant of all mistakes the first time, but don't allow the same mistake twice.
Always look great, whatever your income.
The most important thing you gain from travel is perspective.
Try not to judge people. It's much easier to love them for who they are. You'll be happier for it.
Turn up the music playing on your phone or iPod by putting it into in a bowl - the concave shape amplifies the sound.
Baby powder removes sand from your skin easily. Good for the beach!