Okay you all, first off - thanks so much for all of your kind words as well as your advice/thoughts on the grey caulk line in yesterday's post! I'm so very thankful to have you all to bounce this kind of stuff off of because my hubs eyes start to glaze over when I talk to him about these kinds of things. ;)
Today I'm going to give you a little play by play on using moulding to frame a tile wall. This isn't exactly a "how to" but more of a "what I did that somehow worked out pretty well". 
As soon as I saw this hexagon tile at The Tile Shop, I immediately fell in love and knew that it was "the one" for this project. However, I also knew they'd be a giant pain to cut down to size since they are teeny tiny. I've used a wet tile saw before, but that was to cut much larger tiles (12 x 12) not tiny little less than one inchers. This is one of the reasons I put this project off for so long.......fear of using a tile saw to cut teeny tiny itty bitty tiles.
Then one day, literally out of the clear blue sky, I thought well, what if I just use a border of some kind to frame the wall out to keep from having to cut the tiles with a saw. An idea was born, and I finally got to work. 
As you can see from the above photo I left a decent sized gap between the tile and the ceiling so that I could easily attach the crown moulding at the top.
Both sides just happened to work out like this (picture below), and since I was going to be using corner pieces to cover there was no need to cut any tiles to fill in the gaps. 
As you can also see from the above photos, I screwed in the anchors for the mirrors prior to tiling the wall. This way instead of having to drill through the tile to hang the mirrors I just pulled the tiles off where the anchors were. Once the mirrors were hung these little spots were completely hidden.
As for the moulding frame, I started with these corner pieces. God bless the inventor of these little doodads! Seriously, they make adding crown to a room quick and easy, and in this case they worked like a charm to transition from the corner strip to the crown at the top. I even cut off the little points at the bottom with a hand saw to make the transition look even smoother.
Once the corner pieces were up, I attached the boards for the towel hooks then added the crown and the corner strips. Then I caulked it all and painted. I used pre-primed moulding to make the whole process a little faster. Everything was pre-primed except for those decorative corner piece doodads.
I mentioned the grey caulk line in yesterday's post. I think I'm going to finish this off with another very small strip of decorative molding to fully complete the frame around this wall. More on that to come later.
Anyhow, framing this wall out like this was not only a huge time saver since I didn't have to spend a gagillion hours cutting teeny, tiny tiles to fit, but I think it also makes the whole space look more finished. To cut around the light fixture I used tile nippers. Since the fixture lays on top it's okay that the cut lines aren't perfectly straight.
I finished the crown all the way around the room for a nice cohesive look.
Let's pretend I have a toilet paper holder okay?!
So that's how the framing went down - easy - honestly - easiest part of the whole project.
As for the nitty gritty of the actual tiling process, here are my tips for anyone that has never tiled before and wants to give it a shot.
1. You can totally do it! If I can - anyone can - always remember that!
2. If you're going to be working alone and you don't have a huge block of time to tile, like if you've only got an hour or two a day to work on your project, than I would highly recommend a pre-mixed tile adhesive rather than the powder stuff you have to mix. It comes with a resealable lid, so you can do a little at a time without having to mix up a new batch every time.
3. I think that while grouting tile with millions of little grout lines is most definitely a major pain, it's also a great tile to work with for a first timer. With so many grout lines it's really hard to pick out mistakes. Anyplace where maybe the tile slipped a little or you didn't space it out just right is totally not noticeable with all these grout lines. It's sort of like a where's waldo which is great for a novice......as inevitably there will be some mistakes.
4. In the same way that I recommend the pre-mixed adhesive for anyone working alone in small time periods, I also recommend a pre-mixed grout for the same reasons.
5. Without a doubt the most tedious task of all, in my opinion, was grouting. Putting the tiles on the wall was easy breezy compared to grouting. Cleaning up the grout haze is kind of a nightmare. I found that using a stainless steel scrubber thing (like the ones you use on pots and pans) worked the best to scrub it off, but you'll want to test first to make sure it won't scratch your tile.
For those that are wondering.................
Q. What would I do differently?
A. I would not have started from the countertop the way that I did. I would have laid the mosaic tile sheet about half an inch from the top of the counter and cut the tiles to fit flush along the countertop edge. I think with nippers I could have cut the pieces to fill in and even if those pieces weren't perfectly straight the caulk line would have covered that up making it hardly noticeable. Live and learn I guess. I plan to show you how I remedy this little issue since I can't exactly go back now.
Q. Would you do it yourself again or would you hire out?
A. I'd do it myself again in a heartbeat. It was a long, sometimes tedious process, but it wasn't terrible. I only avoided using the tile saw because these are such itty bitty tiles, but for subway tiles or anything larger than an inch a tile saw really isn't tough to use..........so don't let that throw you off!
If you all have any other questions just let me know! Thanks for all of your encouragement throughout this project! It really kept me going when I was elbow deep in grout and having Mr. Miyagi wax on wax off flashbacks while cleaning the grout haze off of the tile. ;)