How to add 'Company Name' in customer register and billing info
<p>I've been trying to add 'company name' on customer register and onepage checkout but unsuccessfully so far. I tried <a href="https://magento.stackexchange.com/questions/15847/add-company-name-to-billing-shipping-dropdown-in-magento">https://magento.stackexchange.com/questions/15847/add-company-name-to-billing-shipping-dropdown-in-magento</a>  but it didn't help at all.</p>
<p>I can't believe there isn't a simple way of doing that.</p>