When I first started sewing I really didn't give a whole lot of thought to the kind of thread I used. I just picked up whatever was the best price and went on my way.
After sewing for a few months I kept having problems with the bobbin thread becoming tangled. Like every. single. time. It was really frustrating and being a beginner at machine sewing, I spent a lot of time cursing my machine.
It was actually my mom that recommended changing threads. Seriously? The thread? Check out the photos on this interesting article about different sewing threads. I noticed the difference RIGHT AWAY. I use Gutterman threads, it is readily available at any Joann Fabrics and almost always 40% off too :)
Here is an example from my own experiment I used the typical brand (no names here but you know the one I mean, C&C).
I did this little experiment on the same project, same day. Yucky stitches! I also had a tangling problem about 1 minute into this line of stitches.
This is my Gutterman thread. MUCH NICER.
For the longest time I thought it was me or my machine. I have a very basic, but very highly rated mechanical Brother machine. When my mom shared that she had similar problems with her machine (which is much nicer than mine), I knew that I should give changing threads a shot. It apparently solved her issues.
Now from the looks of this article not all of the C&C threads are bad, the 100% cotton thread has very few loose fibers and looks like a great choice.
It's kind of funny that the solutions for some things can be so small. I get plenty of cheap fabric at Walmart and it wears quite nicely. Apparently you can save on the fabric, but you have to spend on the thread. Go figure.
Take a good look at the article and post your thoughts and experiences :)
NOTE - this is not intended to diss any particular brand, but rather just my own experience :)