Prepare as best you can as soon as you can. This means starting to pack ASAP. You absolutely will not regret it. Moving is a part of life and as life comes at you fast, so does moving day. Be as prepared as possible. If you’re packed and something unplanned comes up, packing is one less thing you’ll need to do.
When you give yourself time to pack it can be done efficiently and with a plan; know where your family’s meds are… and your favorite jeans.
When moving, you can take the opportunity to get rid of those pants you never wear, give those old sheets to a kennel, and donate the canned goods.