Readability is a valid reason to learn to use whitespace:
void MyClass::myFunction(
const MyObject& obj,
const string& s1,
const string& s2,
const string& s3
) {
return;
}
Located over there the parameters won't get confused with the body of the function. By locating them on a different line you won't have to reposition them when you change the name of myFunction to something more descriptive. Not changing the parameters position when they haven't changed is something source control diff toolstool users will appreciate.
const means something. Don't throw it out just because you're out of space and ideas. Readability is king but breaking things in it's name is just giving up.