I keep a Qur'an stand (rehal) on my prayer mat that has my Qur'an and dua cards. My mother probably has memorised all these duas, and she knows the dua for each ocassion, event, problem, need, etc.. I just refer to one of these booklets. Every now and then mummy will find some new set of duas for me to add to my collection.
So, first is my Qur'an, which was a gift from my friend Ehab.
Fortification of the Muslim: A really famous pocket dua book for all ocassions.
This book is a bit incomplete, it has selected verses from the Qur'an for medical problems such as asthma, throat infection, eyesight, etc. But the name of the Surah is not mentioned against the ayahs. However, there are no references what so ever in this book, so I can't say it's very authentic. I read it very ocassionally, just to see learn how and why they're referenced the verses to a certain problem.
Morning and Evening Prayers of the Prophet (pbuh) are a standard list of masnoon duas. Best time to read them is at fajr and maghrib. It includes some of the popular duas such as ayat-al-kursi and sayyid-istighfar.
Two very important every day supplications in the life of a Muslim- Dua for Guidance, and Dua of Need. Read it every day
My favourite: Duas from the Qur'an. It has the duas made by the Prophets, and other duas that Allah (swt) has asked us to make. I like these duas more because they are ayahs from the Qur'an; you can recite them with proper tajweed and feel the power of the words that Allah (swt) send down for us.
Duas for protection (from all types of evil). It's amazing how many different types of dua the Prophet (pbuh) taught us. Subhanallah!
Duas to protect you from depression and sadness :)
Duas to protect you from the evil eye.
Masnoon duas: A collection of beautiful Sunnah duas with Urdu translation. I have posted my favourite one here.
Al Hisnul Hasin: Again, a very popular book. Although, I'm a bit cautious with some of the duas where you have to recite them a certain number of times as references are often left out in this book. At the end there's a really nice section on what the Prophet (pbuh) has said on the excellence of reciting some of the chapters of the Qur'an.
This is the same collection of Morning and Evening invocations except it's with Urdu translation and I keep this in my bag. [It's smaller in size than the other one]
This booklet has all the duas for travelling: for the marketplace, before entering a masjid to mounting your vehicle and en route. I keep this in my bag too.
I have PDFs of these cards, so drop me a note if you need any.