Where and how you start your packing depends on many factors, including how much time you have, what your needs and priorities are, and how organized you are in general. Spending some time exploring these factors before you start packing can help you identify your strengths and weaknesses and make your move more streamlined and less stressful.
Before doing anything else, get rid of anything you won't be taking with you. This will give you a much clearer picture of the job ahead of you, how big it is, and how much time it's likely to take. Always budget more time than you think you'll need.
Whether you go through each room, packing up books, toys, photos, seasonal items and other nonessentials as you go and leaving the rest, or whether you start with one room and stay in it until everything you don't need is packed up, the things you're still using are safely stored elsewhere, and the room is completely empty doesn't matter, so long as you stay on schedule.
If you're packing up a home office, you'll have to give careful thought to which items you need for your daily business operations and which can be safely packed away. Keep in mind that it may be weeks before you're fully unpacked, so plan ahead and label everything wisely.
Perishable items will of course be among the last things you pack. Plan to use up as much of your frozen and refrigerated foods and produce as you can before moving. Water and drain houseplants a few days before the move so they won't spill during transport.
Each family member should have a small case to keep their personal items in. Anything used daily-toothbrushes, medications, makeup, toiletries, etc.-should be kept in the case when not in use.
On the day of your move, throw out any trash, take a last look in each room for any stray items, place wet towels in plastic bags, and make sure all of the personal cases are accounted for. Have premade sandwiches for your final meal, or plan to stop at a restaurant. Bid farewell to your old home, and set off to start fresh in your new one.