This is not so much a unity specific tip but more of a C# language tip. if you are trying to port or adapt your game code from one platform to another like for example from XNA over to unity implicit operators may come in handy for automatically casting types and making you code much more readable and easier to port.
Link to MSDN Documentation here
Often times we programmers can fall into bad programming habits and we can forget or overlook language and API features that would otherwise make our lives easier. :P