everything APG and naomi said and additionally pay for the movers to pack for you. When we moved, as well it being less stressful, it gives you better insurance cover from the movers. Either take with you fabulous picnic food in cold bags or suss out a local excellent takeaway if allowed where you are. You have probabaly all the cat expertise you need but if not shut cat and litter tray on one room and threaten the removal men with painful death if they so much as touch the door handle. Depending on your cat, a harness and long line can be helpful for the first few days and if you decide to go this route, get the cat used to it well before you move. maybe a cattery for a few days as an option? Fit as much essential/precious stuff as you can in your own car...by essential I mean kettle and hot drink fixings a set of bedding and towels and the wherewithall to get clean, the aforementioned food, a change of at least underthings and top clothes as well if they will fit, any small things of value, either sentimental or monetary.