I was recently approved for a Bank of America Secured Card with a credit limit of $300 matching my deposit! And so begins the establishment of my credit history!
I took a look at my credit scores and report, and they are as follows: TU: 651 and EQ: 651. My Experian credit file is too thin to have a score, though I suspect both of those scores are greatly exaggerated for this same reason.
My TU credit report (but none others) show a card 103% over its $2500 limit and months overdue, this can't be mine as I just turned 18 in December. It reports that I am an authorized user, so I asked around and figured out it was a well-meaning grandparent. I turned in a dispute to have it removed but haven't heard anything back yet (however it's only been a few days.) I suspect this will lead to a bump in that score, however accurate a score with one card and one payment on it can be.
My eventual goal is a Chase Sapphire Preferred, as I do a lot of international travel for work and such. I was considering opening up another secured line with a 1k deposit to show multiple revolving lines on the report and higher total credit availability. Because right now, my debt to credit ratio can get thrown past the 40% mark with a modest trip to the grocery store! 
Might there be a better alternative than hiding away $1000? A fast track to a useful credit card? I've considered buying a piece of jewlery on credit and then paying it off in the first bill to show multiple credit types as well. But I'd love to hear other reccomendations!