whats the torahs point of view on tampons? on pads? does the torah recomend one more than the other?

Are there are laws, rules, regulations, etc. regarding the washing/cleaning of a talit?

Obviously, it is forbidden for Jews to eat pork, but is it forbidden for Jews to handle pork or pigs (especially if they are not destined for consumption)? Could a Jew slaughter pigs and make their skin into articles of clothing or footballs? Could a Jewish student participate in a biology class that killed and dissected a pig? Could a Jew keep a pig as pet?

Tell me about the history of Pesach

I live alone in a neighborhood with no Jews and no temple within walking distance. However, I would like to start practicing shabbat as much as possible. This presents small difficulties though. For instance, do I need two loaves of challah bread when the other will most likely be wasted? Or since one of the prescribed activities is socializing with your family and friends, is it acceptable for me to have phone calls with them or would that be melacha? Basically, my question is: is it possible or advisable to celebrate shabbat by yourself?