{No sew} XL T-shirt to fitted

Hey y'all, About time for a tutorial don't you think? It's been quite a while. For more reasons than one.
This one is for that SUPER big T-shirt that you really like what it says or something, but don't want to wear it because it makes you look like.....well, ya know. And if you don't? You can just read along, even though your bored, to be polite. ;)
Really wish I had before and after pictures, but I did it at night and I could not find a good place to take the picture. So just 'Afters'. :/
I had been wanting to learn how to do this for a while now. But, I couldn't find exactly what I wanted. The first T-shirt I did (and I seriously recommend you start with a t-shirt you don't mind messing up) a mixture of this tutorial Here and something I found on ask.com that I can't find now.
I will try to explain what I did best I can.

Supplies:
T-shirt
scissors
sewing machine {optional}

First turn your t-shirt in-side-out and lay it as flat as you can. You could iron it if you want. I didn't. Cut the hem off the bottom of the shirt. Then you can either eye-ball it or use another t-shirt as a guide. If your using another shirt lay it on top matching the shoulders, as flat as possible. Again, sorry about bad pictures.

Then (using the extra shirt as a guide) starting at the bottom corner of your shirt cut a curved line up to the under-arm. do to both sides. Should look something like this. Note: I cut mine to much. I, was an idiot, and didn't leave enough room to cut the fringe. I would leave at least about 2 in. bigger than you want it finished on both sides. 

Then cut about 1 in. wide by 2in. long slits all the way up.

Just start knotting each strip with the one directly across from it.

 Trim off excess and there you have it. A, at least, more fitted t-shirt. Now This didn't work for me. I ended up making it way too tight. So I did pretty much the same thing only I didn't cut a curve I just cut straight up to the arm. And then cut the slits. It worked a lot better for me. That is what I would do if your t-shirt isn't just falling off huge. And if it is, I am seriously wondering why you kept it.
Also if you like the look of the tassels on the outside you can do the same thing only don't turn your shirt in-side-out at the beginning.
And I know I said this was no-sew, but I thought with the shirt now fitted the sleeves looked a little big. And on me a little goofy. So I just sewed a straight stitch along the under side of the sleeve. Like this.
(I know weird hump in my stitching. So I'm not the best seamstress in the world.)

TA-DA!

                                              (This is with the tassels on the outside)
Steelville, I may not live there anymore, but I'm still rooting for you.

Now I know this is a horrible finishing picture, but it is all I have. It was very hard to get a picture. And I couldn't even get a good side view. Maybe I will get Rebekah to take a few pictures of it outside. Then I'll post better ones. But till then hope this suffices.

Well, it is super late and I seriously need to get some sleep. So TTFN!

~Ivy

2014 edit:
  I found just totally skipping the part about the cutting the curved sides was better. Instead just cut the sides straight up to the under-arms. Curving it just made it too fitted for my tastes.