Template page for specific node I have seen a ton of examples on how to do this and I must just be fundamentally confused. I want to modify one node, in my case nid 302998. I have tried:

node-302998.tpl.php
page-node-302998.tpl.php
node--302998.tpl.php
page--node--302998.tpl.php


All to no avail. I am placing them in my templates folder. In that folder I see a few working examples of tpl files, such as node--glove.tpl.php, glove being one of my content types, but I see no examples of specific nodes/pages. 
I have tried clearing caches as well. I am out of ideas.
You can override every single node with its node id, as per your nid it should work with node--302998.tpl.php then also if its not working just enable debug mode so you can get idea how many template name available. 

To enalbe debug mode open setting.php $conf['theme_debug'] = TRUE;
 refresh page again and press ctrl + U for view source. 
 you will get all the name those are possible with your page.