some blogger's suggestions:
This is a business card, so do need some sort of a business to apply. With
that said, you don’t need an Employer Identification Number. Your social
security number will work fine and American Express will judge your
application based on a number of factors including credit, personal income
and business income.
You have to spend $20k in the first three months. That is a huge amount for
a lot of people. There are many ways to meet this requirement, but the
easiest would probably be to buy $500 gift cards for $3.95 each at a mall.
When doing this, you would need to purchase 40 cards for a cost of $158. In
the end though you would have 170,000 total points. (Another way to think of
it is your $158 cost of MS generates $300 in points.)