Welcome all!
I see that there are almost 130 of us signed up for this one, which is brilliant.
I'm starting the week 1 thread a little early, as I'm away this evening and won't be back home until mid-morning tomorrow, and I know you all want to get cracking 
So, without further ado, here's the Spreadsheet of Fabulousness
If your name isn't on it, just add yourself at the bottom. Don't worry about the alphabetisation - wombattoo will sort that out later. Add your weight, but don't touch the blue cells!
It's up to you when you weigh; I'll start a new chat thread each Monday, with a link to the spreadsheet, but if you feel happier weighing on a Friday (or any other day) then it's totally up to you.