[ Photography ] what would you charge ?

[john]

I'm a photographer, i've just designed my own business card (this afternoon)...and all my mates and family think it's really cool...the phone has started ringing already - not for my photography services...i'm being asked to design signs for businesses and all the local kids want something really 'cool' for their facebook page...how much should I charge...

I was thinking that I could start doing cards for parties, like invitations and thank you cards, do you think I should charge per card or per hour...it would be great if you could give me some advice.

Sounds a bit off doesn't it..?