I seem to be getting breakpoints from other programmers when checking out code...
Where is the list of breakpoints saved by Visual Studio? In the vbproj file? vbproj
Starting from Visual Studio 2015 CTP solution and project related files are stored in the .vs directory. The path to the suo file is .vs\<SolutionName>\v14\.suo for Visual Studio 2015.
They are saved in the <solutionname>.suo file. SUO stands for Solution User Options, and should not be added to source control.
No .vbproj.user files should be in source control either!