Just thought I would add to this (and I still say go to an accountant, at least until you are totally comfortable with all the rules and regulations in order to do it yourself!):
I am just doing my taxes now (please don't judge me, lol!!) and found the Canada Revenue Agency site quite helpful.
Go to http://cra-arc.gc.ca and type "home daycare" into the search parameters. There is info on what you can claim, and how, proper receipt distribution (yes, our SIN number needs to be on there, ugh), and all sorts of other stuff.
Hope that helps!!!