Other countries place more emphasis on dressing nicely, especially regarding women's clothes. Skirts may be more acceptable for women. In Latin America, the Middle East, and some conservative countries, women do not wear shorts. If you choose to wear your own clothing rather than adapt to the customs of the country, you may invite unwanted advances by the opposite sex. You may wash your own clothes.
Dryers are less prevalent, usually nonexistent.
Hot water is also at a premium in most countries. Taking clothes that mix and match can help stretch your wardrobe. You will probably find that people do not have as many clothes as most Americans, nor do they change them as often as we do. Most countries have appropriate clothing available. You might consider buying a winter coat in your host country, for example.