How to make an horizontal list

Someone asked me how, so here it is. Paste the following code in style.css of your theme :

ul, li {
    display: inline;
}

For example, for the default WordPress theme, it will be :

#sidebar ul, #sidebar ul li {
	display: inline;
}

It’s up to you to find the correct CSS code, as the themes have different stylecheets. My only advice would be to play with FireBug, a FireFox plugin.

How toHow to display a list of the categories with icons

Here is an example of how to do that :

echo '<ul>';
foreach(get_categories("orderby=name&order=ASC") as $category) {
    echo '<li>'.$category->cat_name.' '.get_cat_icon("echo=false&cat=".$category->cat_ID).'</li>';
}
echo '</ul>';

Update : As I’ve received e-mails and comments on how to implement it, here is the solution. First, create a new page and put {#caticons_listing} in it. Then, paste the following code in the function.php file of your theme (if the file does not exist, create one) :

add_filter('the_content','bm_caticons_listing');
function bm_caticons_listing($content) {
    $listing_code = '<ul>';
    foreach(get_categories("orderby=name&order=ASC") as $category) {
       $listing_code .= '<li>'.$category->cat_name.' '.get_cat_icon("echo=false&cat=".$category->cat_ID).'</li>';
    }
    $listing_code .= '</ul>';
    return str_replace('{#caticons_listing}',$listing_code, $content);
}

Update 2 : You can use a shortcode : [caticons_listing], instead of {#caticons_listing}, which results in a simpler code, as suggested by Robert of trupela.com (thanks, Rob !) :

add_shortcode('caticons_listing','bm_caticons_listing');
function bm_caticons_listing() {
    $listing_code = '<ul>';
    foreach(get_categories("orderby=name&order=ASC") as $category) {
       $listing_code .= '<li>'.$category->cat_name.' '.get_cat_icon("echo=false&cat=".$category->cat_ID).'</li>';
    }
    $listing_code .= '</ul>';
    return $listing_code;
}