What do most people my age do to get credit?
Unfortunately, it's the age-old caught-between-a-rock-and-a-hard-place thing.
Many places won't give you a credit card or extend credit to you because you have no credit to begin with.
But, on the other hand, how is one supposed to attain credit if nobody will give them a credit card or extend credit? And so on and so on.
Are you in school? If so, there's CC companies that have credit cards geared toward students (i.e., they don't necessarily hold lack of credit against you). Personally, my first credit card was through Citi via a college-student geared card about 5 years ago and they even started me with a pretty high credit limit. Several of my other friends got cards through Citi as well. Though, I think being in school and having student loans in our name(s) helped us - but I'm not certain.
Capital One is pretty good about issuing first-time credit cards, but I would stay away from them if possible. They'll repeatedly just open up new credit accounts rather than raising your credit limit (which you want to build your credit), so you'll end up with 4 credit cards with them all with smallish limits rather than just one card with a higher limit.
You said you're a manager of a store, so I'd assume you make decent money. You've also been with your bank for quite a while - so go to them and apply for a credit card. That is probably your best bet as the major credit card issuers are likely more reluctant than ever to issue new accounts just because of the economy.
You should also get some bills/accounts put in your name. Electricity bill, cable bill, etc.
But at the very least - even with NO credit - cell phone providers typically just charge a deposit and it's normally easier to get a cell phone/cable bill in your name than to open up a new credit card. So your situation is somewhat "reversed" in that regard (i.e., having a cell phone in your name normally happens for most people before a full-on credit card).