Wow Chody what a great first day! We are starting 'proper' TT at the end of next week when I finish work. We've been using the toilet for a while now, mostly wees, but have just been doing that to get her ready.
I'm planning on putting her straight into
knickers. She already has some Dora knickers that she knows she will get to wear when she's doing all her wees and poos in the toilet. I got cheap knickers from Kmart - 3 for $1 - to start with.
As for leaving the house, I'm thinking of using pull ups initially. That way she can still use a toilet easily when out but i will have a bit more peace if mind in my heavily pregnant state ha ha!!

I've also bought a travel potty seat, the type that folds up into a bag (fits in baby bag) and sits onto a full size seat. So that way she won't feel like she's going to fall into an adult seat at public toilets! Got it from BigW.
And I also have a Piddle Pad for the carseat. And one final thing, just ordered some Brolly Sheets for when we attempt night training!