Sculpey is really too brittle for MOST  jewelry, depending on what you're doing,  but I think your biggest problem might actually be not conditioning the clay enough.  Even if it feels soft and pliable, the plasticiser may not be thoroughtly incorporated into the clay so try conditioning it more, especially Kato.  Once ...

Different brands of translucent are more or less translucent than others.  Premo, for example, tends to bake to a grayish color unless it's very, very thin.   You might want to try making your object out of a very light hue to put behind the translucent, and keeping the tinted translucent layer almost paper ...

You can probably still salvage it but that will vary depending on how soft the clay was when you originally got it.   If it won't condition, you can always try to use a little liquid, etc.  Or go the other way, bake it, and then grate it to use as a mix-in.

You don't want to be baking the glues - that would be very bad as they are not designed for that.  Now, for getting wire to stick to clay.  As you have noticed, it doesn't want to do that by nature.  You are on the right track with mechanical approaches.  If you keep thinking along the lines of a clay sandwich with ...

I'm so glad that you got a chance to take a class with Christie.   Sounds like you got a lot out of it.  Your work will never be the same!

There isn't a one-size fits all solution, unfortunately.  The accordian folder type idea works pretty well for the large, loose coils because you can sort wire by shape, hardness and gauge.  But if you have really big coils, that gets too clunky. I've often looked at office-type slotted mail box or scrapbooking paper storage ...

Yes those are great!  Makes the ideas start churning.........sigh.

Hmmm.  Perhaps large grit sand paper would scuff it up a bit.  LOS takes down the shie but it sounds like you don't want to change the color, just the finish.  Sounds like some experimentation might be in your future. 

Good solution! 

No, not weird.  The idea to angle the end of the wire is a good one. Flatten, trim to angle, and wrap it down.  A very nice finishing detail.