Never used them before I got my Millie (long arm), now they are my best friends! used for pinning on roller bars and they bend easily around the rollers if they have to.

I use them a lot. I like the fact that I can pin my blocks together very close to the seam line and the machine will roll right over them. They're also easy to see if/when I drop them on the floor.

I use the tiny applique pins. They are never in the way and you can sew right over them with no problem. That's what works best for me.

I use them for everything....can't stand the shorter ones with the tiny flat heads. When I'm piecing, I just pull one out at a time ahead of my sewing.... They are easier to find when there is a stray than the others too. I put them in at a right angle to the seam I'm sewing (with the yellow head sticking off the fabric and then pin double stuck into the fabric) so if I miss one and sew over it, no big deal.

The so-called "quilters' pins" with the large yellow heads are not meant for piecing at all - you should use a finer and more flexible pin for that job. The yellow ones are really meant more for the layering and basting process.

Ditto.

I only use them when I'm working on heavy things , like when putting polar fleece on the back of a quilt or something that is thick. Making bags of heavy fabrics.

I use mine for when I am matching seams. Like where you have one seam going one way and the other the opposite. I put one on each side of seams then they dont move and I don't have to rip.

I use them to pin through so my corners match up better. I pin the entire length of both seams when piecing patches

The only pins I ever use are the glass head pins that are very thin. The yellow ones are too thick for me. I have some, but never use them. They are pretty if you make a pin cushion and give it away with a few pins on it.