A few years ago, while I wasn't working full time, I did a load of Philosophy evening classes. The essays I wrote for the class coursework are now back online:
Rationilism and Empiricism
Free Will
Dostoevsky and Kafka : Existentialists?
Bakhtin and the World Wide Web
Wittgenstein : Language Games
They are essays in the high school sense rather than the essai sense, but some may find them interesting.