No credit card required
Browse credit cards from a variety of issuers to see if there's a better card for you.
senseidab,
PIF the Cap 1 card. Either shred it or make sure you don't let even a $1 balance float each month. Allowing it to sit on your report with a $0 balance will give you some FICO score love over time. Closing it will gain you nothing from where you are today as it's exceedingly unlikely they won't report it even if you close it today.
Cap 1 claims they are gonna start reporting balances this year, but the glaciers are also getting closer. It's a race to see which comes first.
If I'm pleasantly surprised and they start reporting balances, then they are likely to see an increase in the number of apps and their standards for issuing might rise. It's not like you're getting in on the ground floor of a golden opportunity, but I think you're better off to let the card sit on your report.