<human>: I have some questions as I'm considering some advice from my father about credit and credit score.  I've gone through the wiki and while it has confirmed some of the things he has taught me about the topic, I'd like to get a second opinion on the matter of credit card count.

For some basic background, I am rather stable financially, have a solid savings account to handle any kind of emergency, a solid credit score for being in my mid 20's (Mid-high 700's).  I carry only one credit card though and it has a relatively low limit from my local credit union.  I see the advantage of opening up one as it gives another line to report on long term, but I try to approach things from a practical standpoint.  I have my credit card used for only specific things and auto payments set up to pay the balance automatically, and I have not actually needed an additional card because I work hard to make sure that I keep myself in as little debt as possible so from a fiscal standpoint at the moment the issue is to me: I have enough money set aside for emergencies of most kinds that I don't NEED a credit card to handle it, so is it even worth getting a second one?

I'm aware too that I could ask for an increase increase in the limit on my existing card and likely get it with no problem, but then I would want to approach the situation with the mindset of: one card is for general use like I am already doing with specific kinds of purchases, and the other would be there for something bigger, like some large piece of furniture and the like, to which I again cannot forsee anything at the moment where I would want to put down $1000+ on something all at once.

Can you summarize the given text in a few sentences?
<bot>: Is it worth it from a credit score standpoint to get a second credit card when there is no immediate or forseeable financial need to have a second line of credit open?