I find I'm constantly changing my energy saver settings - never sleep the screen, always sleep the screen but never the machine, sleep after N minutes, etc - depending on what I'm doing, and I find going into Preferences for Energy Saver to be tiresome. What I'm really looking for is a menubar drop-down that allows me to specify certain predefined settings for energy savings and then allows me to quickly switch between them by selecting from the menu.
Does such an application exist? My searches indicate it doesn't. Surely some other people find themselves in a similar situation to mine?