I just went through a cycle of multiple browser method, and during it I came upon a question.
i.e. For Chase and AMEX (nor sure about Citi, etc.), when you fill out an application, it asks if you already have an online account or are a previous card member, etc., and if so, then to type in your username/password, so that it can fillout the basic details for you and ease the process.
Personally, I have just steered away from selecting yes to that question and chose to put in all my information manually, etc. But what is everyone else's experience, or is there already a general consensus to what to answer for that question, that I am unaware of?