What could you never renounce to bring along in your handbag?

I will never go without my keys, wallet, which contains my checkbook and my credit cards as well as my cash. The next thing I will not go without is my passport, followed by my address book, and my cell phone. So these I will not leave at home. These are my necessities and I will never leave the house without them. I also could count any coupons I have in case I am going shopping, plus cough drops or vitamin C pills since it is getting near Winter and I do not want to get bronchitis again.