I think feta is delicious just as it comes, but every now and then I like to add a few little bits and pieces to add some extra zing.  Here is my favourite combo:

300g feta
4 sprigs of rosemary
1 clove of garlic finely sliced
4 pieces of lemon peel
1 small red chilli, seeds removed and sliced
Freshly ground pepper
2 tablespoons of olive oil

This is delicious served with drinks and nibbles, or added to a frittata.  With this little batch I plan to do both!