I have tried and broke 3 of these stupid things and now have ordered 3 more. Anyone have advice as to how to get this on without breaking the little black clip? I thought of possibly boiling it to make the plastic a bit more flexible or heating it some other way. Ideas?

 

Slide the tab through the elongated hole, gently (they're easy to break) bend the tab so the tab fits through the elongated hole, rotate the entire thing so that the round split part will fit into the round hole on the door, push it into place. Anything else I can help with let me know.

 

Someone mentioned hot water to soften it up.