Good interface design should be instantly recognizable and immediately useable. Creating an appealing layout is easy with themes. Designing a functional layout is another story. There are many techniques out there for developing intuitive interfaces but I prescribe to the grid. Grid interfaces provide a clean, organized and calming effect on users. Your interface design can make or break the success of your project, so design carefully by starting with a well designed form and list layout based on the grid system. Not only will the grid system be covered but a plethora of other interface tips, tricks and guidelines for creating successful interfaces without a ton of effort.