These are on my radar lately. We've used them before as return address labels and now I'm dreaming about them for the contact card purpose.
Yes, yes, if one was so inclined creating contact cards on one's own printer is quite cost effective. One could even go so far as to say it would be rewarding to create and see those labor fruits.
However, this "one" is looking for easy. Plus, it seems that my creativity seems to be lacking as of late.
Another option is Vistaprint. Inexpensive. Less cute. Their sight seems slightly more difficult to maneuver or maybe that's just me.
Do you use contact cards as a mom to share with new friends rather than just whipping out your SMART phone to enter that new number? Did you create your own? If so, how? Would love to know the details!