Came across this brilliant GOF pattern cheatsheet/cheatcard on DZone. Essentially it's the GOF creational, behavioural and structural patterns distilled down in a sort of periodic table format and in suitable format for printing to A3. Like most developers whenever starting a new unit of code I find myself heading to the c2 wiki, or if I am at home, flicking through to the back pages of the GOF book or if in a pinch, hitting Vince Huston's The Sacred Elements of the Faith site. This chart helps speed things up a bit. Check out: Or download the card directly: