The Scholars have said it is important to recite Surah Nas, Surah Falaq and Surah Ikhlas in addition to Ayah Kursi and the Morning and Evening Duas every Fajr and Asr Salah. If you do so, you are asking for Allah's Protection from those most likely to harm you; namely the human race and even more so the Jinn.
Remember, as some have already said, 'hasad' is not something that can be easily avoided, but as long as you avoid the avenues of where it can occur, you have enabled a fortress to be built around you with Allah as your principal guardian.
The scholars add 'hasad' can be given by not only by those who are jealous of you, are displeased with what you have and wish to harm you, but also by anyone else (including yourself!) if the words 'ma'shallah' are not uttered after you see something or think of something you are pleased with. In addition, the Prophet (SAW) himself said that if you like something that someone has (such as knowledge, wealth, the looks etc.), you can utter words to the effect, 'increase his/her ....... and give me some of it as well'. Even looking at the mirror and admiring oneself can lead to hasad, that's how dangerous and prevalent it is. But, for every danger there is a safety net and in this case its to have hope in Allah, to avoid all the routes that can lead to it, to say 'ma'shallah' every time you like something someone has (even cute babies and children can be given 'hasad' unintentionally by other parents) and remind others to say 'ma'shallah' as well. If that is not possible, then say so on their behalf.
Finally, among your greatest weapons are to be constantly grateful for whatever Allah has given you and this includes what He has denied you but given to others (because you might have not been as good a Muslim if you had received them), to be patient in adversity and hard times, to be as loyal and devoted a slave to Him and His Religion as you can be, work towards the Hereafter more than you work for this world (in whatever capacity you are able to) and to accept Allah's Decree, Shariah and everything else He has ordained, even when you don't understand it.
