Paying monthly subscription on home security may be worth it to add security to your home and family. However, there are many inexpensive ways to make your home secured, dads. A few are listed below:
Pray to God for protection. No argument about this. It's only God that protects.

Know your neighborhood and keep abreast of your surrounding

Don't fail to know what is going around you and in your neighborhood. Read local news. Get the gist of the happenings around you.
Never leave the doors unlocked

Either you are indoor or going out briefly or far away, always make it an habit to lock your door. Even, if you live in a gated community.
Install a few inexpensive security camera outdoor.

Install a few inexpensive security camera outdoor at least at the back of the house. If you cannot afford monthly home security, get affordable and effective outdoor camera with wifi capability.
If you can afford it, get a video doorbell.

Video doorbell is not a luxury; it adds to home security. You see, who is at the door. There are simple and inexpensive ones you can install at your door. These are not the way you monthly paid-subscription ones. I
Don't take your schedule public

While you may love social networks and you are very friendly, don't be foolish to share your schedules to public through social media, friendly gatherings etc.
Make your garage secured, if you have one.

Always lock your house garage, if you have one. Secure them from inside. You can install an inexpensive camera there.
Do some "we are home" trick

Pretend your house is preoccupied especially if you are away. There are some smart indoor light bulbs and timers, reminders that can make your home occupied, even if you are not home.
Keep and maintain boundary for house service helps

Monitor your house access to the hired home help such as house work freelancers, handyman services etc. Be around during indoor and outdoor house help services.
Stop putting extra keys outside

Do you still keep keys under flower pot and other location anyone can guess easily? Even, if you think no one can guess yours, that is still not security wise. That is not being security smart again in 21st century.