As an alternative to creating a blank solution you can create a "solution folder" to gather all the IVF projects together and make bulk editing their property sheets a little easier. Solution folders look like folder nodes in the tree view but have no significance outside of that view. They have some handy context menu items associated with them and that's about it.
Be aware that the IVF property sheet mechanism (at least in 10.1.019) is very clunky. With 25 projects and Debug+Release and Win32+x64 all selected it takes many seconds to modify a setting. Also, I have to restart studio frequently while working on FORTRAN settings because it will just decide I can't edit them any more or the display goes quietly insane. It occasionally stops allowing some changes for other project types as well. If it pops up an error telling you that the value you're trying to set is not allowed just save your work and restart.
It would be very nice if we could get support for .vsprops inheritance. My 200 C++ projects are easier to manage than my 25 fortran projects.