1. Always file a paper return. It will take longer to get a refund but is much safer.
2. http://www.irs.gov/Individuals/Electronic-Filing-PIN-Request
Until this year, I have filed a paper return. I told my husband that I am tired of worrying about filing taxes for 6 months and then worrying for 6 months if maybe I did something wrong. I have prepared and filed our taxes during the entire 30 years of our marriage.