1) The tea will have gone off the boil before you pour it, therefore it shouldn't make any difference if you add the milk to the tea or the tea to the milk. Some people firmly believe one or the other is right, I've tried both and it doesn't seem to affect the flavour at all.
2) Adding milk to Earl Grey is just wrong

but then you have to drink it, I don't...
3) I generally prefer tea with lemon and honey, ideal for those 'I've got man (or woman) flu days' or when you are feeling a bit down

4) while there is always some discussion as to if loose tea is better than a bag, in tests it has been proved that there isn't much difference. If anything, because the bag tea is more fragmented, it releases more flavour in the short period of time.
5) choice of teapot, especially the material it is made out of, does make a difference.