How far should I go?

So, as some of you know, I'm entered into the Scruffts heat at the London Pet Show in two weeks (eeee!). I'm wondering what I should do to prepare the dogs?

Do I buy fresh breath mints?

Do I use their normal new leads and collars or the black one I brought?

Do I brush their teeth/fur every day for the week beforehand?

When do I bath them? The day before? Tomorrow then the day before?

Do I buy professional shampoo and conditioner? At the minute I'm using Petgead shampoo and no conditioner.

Thanks

I will be going on Coco's charm and her ability to make people go AWWWW...

[lol Murf.