Do you separate your personal fiances from your business finances  

yes i do because if you do have your own business out of your house, whether it be crafts or whatnot, you can claim things like a certain amount of heat, hydro and other expenses (here in canada anyways).

I am very bad about this...No I don't do this and I'm also planning on keeping my business finances separate in 2010. The main thing holding me back is having to go to the town that is the county seat, and apply for a business permit that will allow me to open a bank account. I already have all the tax IDs, but until recently (when I tried to open a business checking account)I found I still need to file for a business permit in the state to have a bank account.
I pay state tax each quarter, and claim my earnings on my federal taxes every year, but I have to pay another fee to be able to open a checking account in my business name...ugggggh.
What is holding me back is this process must be done in person and of course the only time this can be done is during normal business hours Monday-Friday...when I work at my J-O-B.
I'm off from work next Friday...I guess it's time to bite the bullet and git yer done.