As described in some of the earlier posts, there are commercially-available "holsters" now for Yanks. In my RT days, we always basically did the NS flush thing and replaced it in the wrapper at the BS with one extra step- after the flush, we'd wipe the exterior of the tip with an alcohol swab, then put it in the wrapper. That's an excellent point about thinking about where it's been before it touches the pt. If you think about it, the NS flush alone doesn't do much for the exterior of the catheter, and if it's all crudded up when you put it back in the wrapper, you could be growing an interesting "science project" in there between uses! Once the inside of the wrapper's good and contaminated, you're back to square one! E-w-w-w-w!