Tips for setting boundaries with Pre-Schoolers

Having just recently moved, we have been presented with the need to re-defind the rules for our kids. A new house means new places they can and can't be. What are your best tips for setting and enforcing rules for younger kids?

BethSummerville, South Carolina
    4Santana Ferrell
    walk the boundaries with them and when playing with them be sure not to cross the boundaries (at least at first). just a thought. i havnt actually had to do this myself
    About Beth
    Current: Summerville, South Carolina
    Birth: September 18
    On since: Aug 18, 2013
    obsessed with babywearing, cloth diapering, and breastfeeding (but not judgmental about those that aren't). I'm a SAHM that works. Loves cupcakes, kittens, and glitter; hates spiders, housework and pessimism.