Optimal and unobtrusive JavaScript arrangement in MVC project

Seishin began his adventure with programming at the age of 16 - starting with html, php, (simple) js then tried (or rather was forced to) some pascal, some asembler, java and vba. Finally when he was 20 he got to know c, c++ and his beloved c#.
Nowadays he's a senior software developer at a computer company and a freelance webdeveloper designing and implementing winform apps, websites, windows services and others utilizing c#, asp.mvc, js (jquery) and sql (ms t-sql).