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This will narrow your decisions of what to wear and pack. Warmer, tropical climates allow for lighter articles of clothing, such as shorts and tank tops. Colder climates require heavier clothes that would keep you warm, such as jackets, sweaters and coats. Pack a small umbrella if the forecast calls for rain. If an unexpected deluge happens at a time that you absolutely must be outside, ask your host or front desk at the hotel if you can borrow a larger umbrella. Since you are only going on a two-day trip, smaller luggage is ideal. Some good options are a backpack, duffel bag, or small rolling suitcase. You can maximize limited space with a few packing tips. You could:  Roll clothes that won’t wrinkle. These are usually tee-shirts, jeans, and casual clothes made of cotton. Place them in the bottom of your bag. Fold clothes that can wrinkle. This includes cotton dress shirts and anything made of silk or satin. Place them on top of rolled items.  Fold longer articles in half. This includes trousers and long skirts. To create even layers, drape the top of the second article on top of the bottom of the first.  Make use of spaces that remain. Look for smaller spaces between layers and between articles of clothing. Tuck socks, underwear, and chargers in these spaces. Make use of its additional space. In addition to your computer, use pockets for any necessary paper documents. Smaller pockets can fit MP3 players, ear buds, cell phones, flash drives, and business cards. Larger pockets can fit chargers and small adapters. Keys, small cell phones and MP3 players are small enough to fit in your pockets. If you’re flying remember to remove them. Have them x-rayed at the security checkpoint instead. If you’re flying during the winter, put everything in your coat pockets for an easy one-step scan.

Summary:
Check the weather at your destination. Decide on your luggage. Maximize your laptop bag. Use your pockets.