Using Wordpress plugins safely

Most often people tend to try out a lot of plugins while customizing their Wordpress CMS. While they keep some most of them are disabled from plugin management panel in wordpress dashboard or just deleted from the wordpress plugins directory forgetting that it has been included it the template files. Sometimes plugins break between upgrades too. If you are customizing wordpress for a client you don't want him breathing down your neck about the pages not loading properly. Better be safe than sorry, always call the wordpress plugins the right way. if (function_exists('some-wp-plugin')) { some-wp-plugin(); }