I've moved a LOT over the years, and the best tip I ever got was when someone told me to call the wrestling coaches at the local high schools both where I was moving from and to and see if they knew of any reliable guys who would like to make some money helping with a move. They were so fast because they are much stronger than your average friend. I promised myself I'd pass that tip on! I also found another student who was willing to help me pack and clean. They all appreciated the income, and I really appreciated the help.
I used thrift store sheets and blankets to cushion my lamps and things. They got pretty beat up, but I used them for a long time to cover my flower beds on frost warning nights in the fall. Don't use the U-haul blankets (or thrift store ones) for your bed or couch. They can spread bed bugs.
Free boxes are great, but I would also say that if you can find a good sale (esp. with the back to school/college sales that will be starting soon) on plastic storage bins, they are SO worth the $6-8/box when they save the contents from downpours and floods. I recently lost everything in my garage that wasn't in a plastic bin and wished I'd "splurged" years ago. The small medium size are easier to lift and store overall.
I priced both U-haul and Budget rental trucks and sometimes the prices are better for one or the other depending on where you're going. Be extremely careful with the loading ramp. Someone in our group thought it was secured when there was actually an extra latch or notch that he didn't see and he had a very bad fall while carrying something.
Obviously, if there is stuff that you eventually want to get rid of, now is the time to do it since it allows you to rent a smaller truck and save that way. I bought frozen lasagna for the last couple of my moves because it is good and hearty, cheaper than ordering pizza and doesn't require knowing where your pots happen to be at that moment.
Those are the best tips I can think of at the moment. I know moving is daunting at any time, and especially daunting when you have health issues! Take it one step at a time, one corner, one box at a time. Have a large trash bag and a "giveaway" bag right there as you pack, and when the giveaway bag is full, put it in your trunk for the next time you pass a Salvation Army or Goodwill. (Saves time and gas.) Put on your favorite movies to distract yourself, drink lots of water, and realize that one day, it really will be done!!!
Oh, and Epsom salts are great for soaking sore muscles!
Praying for you!!!
"...for the happy heart, life is a continual feast. Better to have little, with fear for the Lord, than to have great treasure and inner turmoil." Proverbs 15:15b-16 NLT
The pessimist sees difficulty in every opportunity. The optimist sees the opportunity in every difficulty.--Winston Churchill