Save programming time when you start new Arduino projects.
Modify your BareMinimum.ino file which is a template for new programs.
When you use File/New in your IDE, this is the template that is presented.
Attached below is the template I use. BareMinimum.ino
(EDIT: I have included SwitchManagerWithFilter.h too, see below.)
When you have decided on a style you like, save it to the directory as see above.
BareMinimum.ino (10.5 KB)
SwitchManagerWithFilter.h (4.18 KB)