Titanium glasses are the modern metal frames which are lightweight. While cleaning the glasses, you should hold the lens not the frame. Go to your optician and they will show you how to do these. I should mention you that titanium glasses are so lightweight that they can be blown off your face in a strong wind.
Titanium are the latest materials for eyeglasses frames. And they are durable and lightweight that make it the ideal materials for eyeglasses frames. So, you can wear it free of risk. And like the regular eyeglasses, you shall take good care of titanium glasses so as to make your eyeglasses durable. So, you shall put the eyeglasses in case when you needn't it. And please not hang them on your clothes or use your T-shirt to wipe the eyeglasses to avoid scratch on the lenses.
You can have a look at http://www.firmoo.com/answer/question/4774.html. There are many good suggestions. I also have a pair of titanium glasses. But I just bought them in the last month. I don't need to clean them every day because I only wear them when I am playing computer games at home. Hope this helped.
Sweetie, you can buy a bottle of solution to wash your glasses. I often spray some solution on the lenses and frame and then wipe them with a piece of clean soft cloth. The optician told me that this solution can help kill bacterial and remove rust. But titanium is corrosion resistance.
If they are a pair of new glasses, I suggest you to have them coated. There is a kind of coating which is scratch resistance. They can help your lenses and prevent from get scratched. Besides, you also need to put them into cases if you don't need to use them.