Is it really necessary to purchase separate adapters for Presta and Schrader valves when using a large floor pump, or can you simply use the pumps existing chuck to inflate tires with either valve type, albeit with a bit more effort and finesse? Does the supposed convenience of a dedicated adapter really outweigh the added cost and clutter, especially for those who only occasionally need to switch between valve types? Are the benefits of using an adapter truly worth the hassle of having to store yet another accessory in your already cluttered garage or toolbox?