But you only get limited uses. Somewhere in the main site Doug Ritter writes in favour of tubes and bottles and against single-use packages. I currently like to have a 10ml bottle of antiseptic liquid. If the iodine will do that job I'd keep it.
From the article that you (must have) read:
Many kits now include small towelettes, pads or swabs of various antiseptics, adhesives, cleansers and the like packed in individual application packets. While very convenient, the shelf life of this packaging tends to be pretty short, much less than if the product was in liquid form in a bottle. While very convenient, all too often you tear open the package to discover the pad is dried out and useless because the packaging leaked or was punctured. If you rely on these sorts of packaged products, be sure to replace them with fresh ones every year or two. Another serious drawback is that they are of such limited quantity.
Better to pack small containers of the preparation, either instead of, or perhaps better, in addition to the packets.Small 1/2 or 1 oz. plastic bottles of things like Betadine (Povidone Iodine 10% solution), an antiseptic scrub, or Mastisol, an adhesive (much better adhesive than Tincture of Benzoin, often found in kits. It also doesn't sting like Benzoin does if you inadvertently get it in the wound), can often be obtained from your physician, who receives them as samples, or at a good medical supply house. Alternatively, you can decant from a larger bottle into a small one. The one drawback, such as it is, is that you also need to pack small gauze pads or cotton balls to apply these preparations.
Similarly, single application foil packs of antibiotics, salves and the like, while convenient, aren't necessarily the best choice for our uses. If you only need a little of the compound, the remainder is wasted and cannot be saved for possible future use. If you need more than a few applications of the compound, the number of packets on hand, you are also out of luck. In a survival situation, with the possibility of numerous dressing changes, you'll run out too soon, unless you add lots. Small tubes of these preparations are a better bet for survival use. However, if you do open a tube for some other first aid requirement, you should probably replace it at your earliest convenience since it loses its sterility once opened.
Once again, the best bet may be to have some of each, single use packets and tubes.