Often in large solutions i had the problem that a couple of little chances needs building some projects. Unfortunately Visual Studio tends to build more projects than needed.
Formerly i used the configuration manager to deactivate unused projects. This is a overhead which sucks.
Now i found, that Visual Studio allows to build all projects in a solution folder. A very cool feature. Normally all my projects are grouped in folder structures which reflects the functionality. And in almost all cases this grouping is the same which is affected from my couple of changes.