I change my card usually every 500 cards or so, just to keep things fresh...I tend to order just one design every 500 cards, rather than mixing designs - I like to go for a nice, high-grade thick stock for the card and spend a bit more, with a nice matte finish. They're all just quickie self-designs - I choose one of my photos I happen to like at that time, and arrange the text portions in matching colors. I tend to stick to the same fonts, and include the same basic information on the card - my name, photographer, link to website gallery, contact e-mail and phone number. I mostly got the cards because I often find myself chatting up other people when out shooting who ask if I have a site or keep a gallery, so it's an easy way to give it to them without writing anything down. I am an "amateur/entry-level pro" (as I like to call myself) in that I do occasionally sell prints, sell for publication, and do some shoots for hire, but it is not a primary career or my main source of income. It's sort of a self-funding hobby for me. My current card is this:
Sorry for the low quality - it's a quickie scan of my card. Just the basic info on there for me...I used the bird this time because it is a place I frequent often, and probably the location I most often give out my cards...and because biridng is definitely a big chunk of my photography. The cards I usually just do through a local office supply chain here in the states - Office Depot. They have an easy-to-use online design templater, with full customization, so I can pull up my previous design, swap out the background photo, change font colors, or move a few things around, and have a new card design in just a few minutes - then send the order electronically and either have it shipped or picked up in-store.
Just resized your image Justin, maximum dimension is 1024 pixels
Sony DSLR-A68 / Sony 18-250mm / Minolta 50mm F1.7 / Tamron 150-600mm / Minolta 300mm F4 APO
Sony A6300 / 18-55mm F3.5-5.6 / 55-210mm F4-6.3 / 10-18mm F4 / 35mm F1.8 / 16mm F2.8 / FE70-200mm F4 G OSS / FE70-300mm F4.5-5.6 G OSS / via manual adapter, lots of Pentax K mount, Konica K/AR mount, and Leica M mount manual lenses