What product or service do you wish was readily available for you to purchase with bitcoin?
What is the biggest barrier you think prevents it now?
I would say insurance based services paid in Bitcoin would be interesting using a distributed escrow contract could withdrawal the funds at the prescribed rate and would not need to worry about it for long periods of time, also can close the contract at any time without being sold to.
Volatility and difficulty in regulations
I do recall one insurance company that showed up on here accepting bitcoins.
They offered insurance for house, car, etc.