Simple PL/SQL Question - Creating/using a procedure in PL/SQL

Question

So far, I have been making simple PL/SQL scripts with no procedures. The structure looks like the following:
DECLARE
BEGIN
END
I have found documentation for Procedures, however I don't see how to insert them into that structure. Apparently one way is Packages, however I don't want to store the PL/SQL on the database. Can someone give me a highlevel structure of a PL/SQL that defines and uses a procedure?

Answer 1

SQL> declare
  2    procedure stage1 as
  3    begin
  4      dbms_output.put_line('stage 1');
  5    end;
  6    procedure stage2 as
  7    begin
  8      dbms_output.put_line('stage 2');
  9    end;
10  begin
11    stage1;
12    stage2;
13  end;
14  /
stage 1
stage 2
PL/SQL procedure successfully completed.
SQL>