I use either a ball point or stretch needle when I sew with my machine.
If you don't have a stretch stitch on your machine, use a tighter stitch length but wider(bigger) zig-zag stitch.

I tend to use my serger for most of my spandex fabrics when stitching seams.
Sergers are an investment worth considering if you sew a great deal esp spandex or any other stretch fabrics.
I would not use it for sewing fake fur though. I tried and really screwed up my serger, as the fur gets caught in the needles as well as it being too thick if using a dense fur.

I always used a zig-zag stitch when sewing fake fur.

Stretch fabrics are forgiving, meaning you can hide mistakes better than woven(non-stretch) fabrics.

I use a 100% high quality polyester thread but if you really need for the machine not to break threads on durable garments or say shade structures, I recommend Wooly brand thread.
Wooly thread is a nylon thread that is fuzzy because it is contains many strands of threads. To thread through needles, simply wax the ends of the thread using wax. Beeswax is used most often, but you can substitute it with any candle wax.

any other tips?