Found that in the orient they always put information on both the front and back of their cards. Since then have always put "(see other side)" with the parenthesis in the middle on the back of my cards.
Also only put company name, company tag line, name, email, phone, and a photo on my cards.
Because I only put basic contact info people always look at the back of the card.
Tell them if they need any more info, call or email me and I will text or email it to them so they don't have to type to add it to their address book.