On the graphical client, in the advanced tab in the configuration window, at the bottom choose deadlineless AND check "Get and return deadlineless work in batches". That's all I did.
On my PC, I can fold one deadlineless WU (239 - 241 points) in just over a day. If I fold "regular" WUs, I can fold more WUs but they total less points (more like 150 - 200 points).