Change your Locks ... As a new homeowner, you have no idea who may have a key to your new home. Re-keying the existing locks or installing new locksets will add an increased level of security and peace of mind.
Discarding boxes ... Placing the box of a new TV on the curb could be an unintentional announcement to thieves. Breaking those boxes down and putting them in your receptacles could be a safer way to dispose of them.
Displaying Your Name ... Even though you may be very proud this is your home, it is probably better not to use name plates on your mailbox or door. It may be more prudent to make it less convenient to tell strangers who you are.
HOA or Mail List ... It is good to communicate with the neighbors because you have shared interests. Recommendations of vendors, to local customs and posting for help locating a lost pet can be very easy through a website or by email. It makes it easy to stay up to date with what is going on in the neighborhood.
Home Inventory ... You've probably purchased some new things now that you have a new home and you may have gotten rid of some things that you had in your old home. It is a good time to make a new inventory of your personal belongings. You can do it with pictures or video or download this free Home Inventory.
Water Shut Off ... Locate the main water shut off valve and learn how to use it. If a water key or special tool is needed, purchase one and put it in a convenient spot so you can get to it quickly in an emergency.