I ordered my one-sided business cards from vistaprint.com, then bought the "video tape" labels from onlinelabels.com. I printed the labels at home with the chinese version of my business cards and put the 2 together. The size of the labels were perfect and my cards look professional.
I printed my information all the way to the edge of the label so that the spacing of the text is better when the label is not as wide as the business cards.<br/><br/>For this purpose, it might be better to use a laser printer as the printing from inkjet does get smeared after a while.