With the release of templates, i've faced a few problems concerning Fashion Wars. Don't want to repeat it, so there is a link.
Because of it i want to bring up a suggestion to arena net. Simple idea of Custom Outfit or Skin Templates.
Everything here as simple as it can be. With multiple equipment templates in use, it is really hard to use multiple gears to change skins on demand. In link above you can read it.
Custom outfit will work in same method as equipment templates. The cost to store or change a skin in the respective slot on the template table is one transmutation charge. When stored in the template, it can be used via checkbox near the number of the template. Once checkbox is set, skin template ( or custom outfit ) will override any gear skins that currently used in equipment templates. With stored skins, there is also a dye template. Each skin template can have hotkey for easy switch. If skin template is used with some empty slots, regular skins from equipment templates will be shown for those slots. Use of Outfit will hold priority over Custom Outfits.
On personal note - i will be very happy if something like that will be added. And not to leave Gemstore away, first offer of skin templates can be limited to free two per character, max to six. Interchangeable gear still can be used for gear-skin changes on demand. But in my experience, it is really difficult to use with equipment templates.