Staples Untabbed Business Card Pages (link below).
Item: 413371
Model: 15934-CC
http://www.staples.com/office/supplies/p1_Avery-Untabbed-Business-Card-Pages_12851_Business_Supplies_10051_SEARCH

- Three-hole punched for convenient storage in a three-ring binder
- Archival safe and acid free so pages won't lift print
- holds 10 business cards per page
- holds 10 pages per pack

If you buy them directly from Staples online and by 6 or more packages they are $2.90 per pack. If you buy $50+ (18 packs) the shipping is free! I don't think that 29 cents per page is bad.

I do miss the Ultra Pro Phone Card Pages from the mid 90's