Leave only footprints. Take everything out that you brought with you. No graffiti, no litter. Support conservation programs. Pick up at least one piece of litter every day-especially at national tourist locations which are vulnerable to huge tourist populations.
Disposable cameras are very wasteful and expensive.
Buy rolls of film with 36 shots rather than 12 or 24. Kodak discards 400,000 rolls of film annually because the return address is illegible. Expensive cosmetic bags are unnecessary and often do not prevent spills. Use zippable plastic bags for cosmetics. Separate bath needs and makeup needs.