Do not business cards
This is assuming you already know what to do with business
cards. There have been tips already focusing on what to do with
business cards to make them look professional even if the owners
are not. To make them appear interesting to make people not
throw them away the minute they are put in their hands. This is
about what not to do with business cards.
Do not print prints smaller than an ant. You may have the good
fortune of having a great sight but others are not that
fortunate. Take those into consideration and give them something
they can read.
Do not choose colors that clash with each other. Think back into
your school days and you will realize that in one way or
another, you have been taught about the color wheel and about
what colors partners with which.
Do not use someone else