Avoid moving between the months of May and August, if you can. Most especially, do not move between last weekend in June, and the 4th of July holiday if you plan to retain your sanity and your hair. Companies get overbooked, and the renter that is bringing in the equipment you'll be picking up is going to extend their rental.
If you are moving, make an initial plan AT LEAST six months in advance. If you are renting a truck / trailer / container, make your reservation AT LEAST four months in advance. Reservations can be changed, but if you don't make a reservation, the schedule will fill up and you won't have equipment when you need it.
DISCLAIMER: I have been in the do-it-yourself moving and storage business for 10 years.
Thanks for advice!
“make your reservation AT LEAST four months in advance”
Good advice for many, I guess, but four days seems adequate around here if not available immediately on demand.
If it hasn't fit you in a while, it probably won't again anytime soon.
If it's been waiting to get fixed, you're not using it and you don't need it (or you've already replaced it), and it's not going to get fixed anytime soon.