Where Can I Find A Room-by-room Checkist For Starting To Pack My House?

You could ask the firm who are going to carry out the removals for you, they will probably have one.
Moving is a daunting task at the best of times and it always helps to be as organised as possible.
The best way to do this is to undertake a room by room inventary.
You can do this yourself. The problem with a ready made list is that it won't have everything in your home on it.
Start in one room and list everything, move systematically through your house , room by room,again, listing everything.
You can then either transfer the list onto your PC. Excell is a good format for this or just use word.
Then you can print off the list and recheck. It's suprising how much you can miss the first time round. Just add anything you missed the first time.