By default WordPress use dash (-) for separting words in permakinks (URL slugs) but you can easily change it to underscores (_). There are two methods. First you can do this by using a plugin or you have to paste some code you your site’s standard plugin or theme’s function.php file.
By default WordPress uses 90% quality for all images served in your website, log posts etc. This is done for conserving space and bandwidth. But still if you want you can force your WordPress JPEG image quality to be 100%.
By default Maximum upload file size in WordPress is 32MB but you can very quickly increase it to 100MB in seconds. This tutorial is on new WordPress plugin called PBP Increase upload limit. The plugin is lightweight, takes about 2KB space but increases your file upload size to 100MB.
While creating any client website using WordPress as base you can easily hide the unnecessary menu items like uploads, tools, plugins, settings etc and make your client website look more focused on its category. Continue reading WordPress Hack For Removing Admin Panel Menu Items In Client Websites
By default WordPress allows site administrators to edit PHP files of plugins and themes direct from WordPress admin area dashboard. If you are using this feature from backend then make sure you have a strong security plugins installed in your WordPress site because this functionality can create a major security issue. For example: If your admin password is hacked by a bot or something then they can easily add their malware or suspicious scripts in your site’s themes and plugins easily by editing their PHP files.