How can I help my cats get used to a new house and neighborhood?

We’re moving in two weeks or so, and we have to take my three cats with us. They’ve grown up in a secluded, wooded area where there aren’t many people or cars, and they like roaming around outside. However, at our new place, there are a lot of cars and people. There’s a fence in the backyard, but they could easily scale that.

How can I help them become more accustomed to the new surroundings? I’ve heard that buttering their paws works, but I’m not sure if they would hold still enough for me to do that…