Hi Fleecewife,
I'm sometimes amazed I can make a living from it too!
It depends on the size of the fleece ( I'm amazed how Shetlands can vary in size!) and the thickness I'm spinning, but on average if I'm spinning it DK-ish, I can get a Shetland done in a good 8 - 10hour day.
I don't card unless it's very difficult to draft, or I'm blending colours together. I normally spin in the grease and wash the skeins afterwards. My charging methods vary as each job is so different, depending on a lot of factors, ie. how clean the fleece is, do I need to do lots of picking bits out and preparation, thickness of yarn and what the customer wants to use the finished yarn for.
Most dog hair is long enough to hold together by itself, you just need to change the drafting technique sometimes and pay attention to how much twist is going in. If it's nice open hair, I just grab a handful and spin, no preparation necessary. As for guard hairs in the fibre, all I would suggest is spinning a short piece, plying it back on itself and feeling it against your skin. Some guard hairs are very prickly but some you hardly notice and they can add a nice texture to the yarn.
One thing I would say to Ian: if you are going to save the hair, please make sure you store it in a cardboard box or paper bag, if you keep it in plastic, Fleecewife will have a large lump of felt to deal with!
And, no, I haven't tried angelina. One day I will find time to experiment!