Excellent clipboard history tool. This is something that the Mac OS has needed for a long time (Been using Mac OS since it first ran on a Apple Lisa from a boot diskette). I don't usually use anything other than the graphical interface so I cannot comment on other features but the main thing is that it stays out of my way when not needed, doesn't obscure "full screen" apps, holds a large history of styled text and other items and takes just a flick of the wrist for me to summon and a single click to paste. Other clipboard managers either get in the way (too big, or hide too much screen) or are a pain to use (just convoluted keyboard commands).

Updates have been coming regularly also unlike many shareware packages I own.