Credit Card Processing for $1 semi annually subscription fees?
I'm building a web service which I'm planning on charging $1 every 6 months. I've been researching into credit card processing solutions which has a low fixed fee, but failed to find a suitable company. both Paypal and GoogleCheckout charges a $0.30 flat fee + 3% or so. which will make my $1 transaction fee 33%! Amazon FPS is slightly lower for 5cents fixed fee and 5% variable, which still adds up to 10% of my revenue. 

Is there an alternative credit card processing company which charges no fix fee thats suitable for my $1 transaction? 
Credit Card Processing for $1 semi annually subscription fees?
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I'm building a web service which I'm planning on charging $1 every 6 months. I've been researching into credit card processing solutions which has a low fixed fee, but failed to find a suitable company. both Paypal and GoogleCheckout charges a $0.30 flat fee + 3% or so. which will make my $1 transaction fee 33%! Amazon FPS is slightly lower for 5cents fixed fee and 5% variable, which still adds up to 10% of my revenue. 

Is there an alternative credit card processing company which charges no fix fee thats suitable for my $1 transaction? 