It's kind of odd that there aren't any links given to buy the stuff you need to get started:
* Coffee filter holder: http://www.amazon.com/Cilio-Porcelain-Coffee-Filter-Holder/d...
* Filters: http://www.amazon.com/Melitta-Coffee-Filters-Natural-Brown/d...
There are a couple other things I do to simplify or improve the process:
* Wet the inside of the filter holder. This'll make it easier to get the filter to stay put.
* Wet the filter once it's in the holder, but before you fill it with coffee. I think this makes a difference in the final taste.
I use a rounded tablespoon of coffee grounds per 4-5oz water (i.e. two for a regular cup of coffee, and three for a travel mug). I don't worry about water temperature outside of whether or not it was recently brought to a boil.