Configure the Drupal Default Input Format

By default, Drupal allows only the following tags in the HTML filter:
<a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd>

That's not enough for writing any reasonably formatted content, and I prefer the shorter <b> over the clumsy <strong>, even though the latter may be preferable in some contexts.

I enable the following tags under /admin/filters/1/configure:
<a> <h3> <h4> <h5> <b> <i> <s> <u> <tt> <pre> <cite> <code> <blockquote> <ul> <ol> <li> <dl> <dt> <dd> <hr> <br>

P.S. I keep having a hard time finding the menu entry for the filters — it's administer | input formats...

P.P.S. See for a comparison of how various browsers display the header style of the Garland theme.