Adding something like this to your ViewModelBase:

        public void RaisePropertyChanged<TProperty>(Expression<Func<TProperty>> property)
        {
            if (PropertyChanged == null)
            {
                return;
            }
 
            var lambda = (LambdaExpression)property;
 
            MemberExpression memberExpression;
 
            if (lambda.Body is UnaryExpression)
            {
                var unaryExpression = (UnaryExpression)lambda.Body;
                memberExpression = (MemberExpression)unaryExpression.Operand;
            }
            else memberExpression = (MemberExpression)lambda.Body;
 
            OnPropertyChanged(memberExpression.Member.Name);
        }

will allow for code like this in ViewModel class property setters:

RaisePropertyChanged( () => MyProperty);

The result is no more typos inside of string properties. Of course, if you've copying and pasting, you can still forget to change the property for the pasted one.