#20: Hey, Neighbor!
There are two types of people in this world: those that like to become friends with their neighbors and those that would like nothing less. Sure, sometimes having nosy neighbors can be really annoying, but on the off chance you need their help, it might just be worth it to have a civil relationship with them.

We know how frustrating neighbors can be, but knowing you have someone right next door to help you or call the police if they hear something is very helpful. Even if neither of you will need the help of one other, it is still a good idea to have this kind of thing as a backup, if necessary.