I agree about setting up online bills for your credit cards. I'm glad I kept my US credit card-comes in handy when buying stuff online to have shipped either here or to family in the US.
I got a bunch of packing boxes, and filled one box per day-it wasn't so hard that way. I only put in things I either couldn't live without, thought I couldn't get in the UK, were very cheap or on sale, or were very sentimental(irreplaceable stuff came with me on the plane). After I filled the box, I usually filled another box for charity or offering to friends and family.
I shipped all my Xmas and Halloween decorations(a MUST if you like Halloween because you won't find much in the shops here), framed photos and wall pictures, clothes, esp. winter coats and boots, bulk items I stocked up on at Costco(like those 3M pet hair rollers), 8 pair of new trainers I bought at the outlet mall(have feet problems and can't get Easy Spirit or Reebok walkers that I like here, also can't get wide widths as easily), toiletry items, Bath and Body Works stuff, Always panti liners and pads(don't ask me why-I have no idea!), candles, Mylanta(can't get it here), and my Snoopy collection.
In hindsight, I wouldn't have shipped as much as I did(shipped by boat, took about 2 months and cost $1000). The only things I really couldn't have lived without were the trainers, the winter coat and the Mylanta. IF you are plus-size, bring ALL your clothes, as I find the selection here to be incredibly poor. That all would have been much cheaper to ship by post office.I would have picked out Xmas decorations and knick-knacks that were very sentimental only. And there ARE Costcos here!
Try to take it one day at a time-I know it's hard. Good luck!