1. Books are heavy. Some people say that a Kindle isn't as good as real books. Some people are pretty women who don't have trouble rounding up help on moving day.
2. Getting rid of books you can't give away and have no justification for keeping is traumatic.
3. You have more small, difficult to pack, useless crap than you realise. It unfolds like a kind of malevolent, multidimensional quantum origami when you move.
4. For local moves, rent a 3-ton truck for moving day. Accept that this probably means moving on a work day because said trucks are booked on weekends for months in advance. Loading and unloading for a single trip is really unpleasant -- but there's something much, much more soul-sucking about doing lots of trips back and forth.
5. Long distance moving changes the work from a single day into multiple days. On paper it should be easier. Paper lies.
6. If you're moving long distance, don't bother with furniture or whitegoods. Ditch them and rent or buy at the other end.
7. Help your friends move.
I don't really have a deep California buddhist-slash-Fight Club reason for it. I just bloody hate moving.
Anyhow, as the saying goes. Before Enlightenment, chop wood, carry water. After Enlightenment, chop wood, carry water.
I dumped everything "big", including dresser/desk/bed, and most of my books had never left the family home in Washington.
It took a week (in Santa Clara, not counting driving to WA and unloading), in no small part due to #3. We were in no great rush, mind you, but holy crap. It's incredible what ends up fitting in a ~12x14 master bedroom and a little corner of a garage. And I'd been used to moving with plenty of big, strong, healthy family and friends around.
Hiring movers seems to be a complete crapshoot, but it's probably what I'm going to end up doing if I have to move again.