Sleeve Kings 55 x Premium Standard European Card Sleeves (59 x 92mm) Fanatics Collectibles Soft Sleeves 100 Count Cardinal Business Card File 72 Capacity 4.38" Width x 7.75" Length Black Vinyl Cover aplusofficesupply Part storage in business card sleeves for binders. You can "spot weld" the plastic with a soldering iron at 260C to customize compartment size. SMD passives still go in boxes : r diyelectronics PATIKIL 3 Inch x 4 Inch Self Adhesive Index Card Pockets 30pcs Plastic Label Holder with Top Open Sticky Pocket Sleeves for Business Cards Note Cards Clear in the Office Accessories department Card Holder with Sleeves Slim Credit Card Holder Del Giudice Roma