Thought I'd share since I figure I'm not the only one with this issue.
I have been having the issue of a saggy front bumper, where one side hangs lower than the other.
I didn't want to go with a bulky latch system or replace my bumper because it would only be a matter of time until the bumper tabs ripped through again. This was probably the most permanent and cost effective solution I came up with, as I'm sure there are many others out there with more custom fabrication and time put in. I came across the fix on an Evo forum and liked it because it was an already pieced together kit and the latch looks really subtle and blends right in. This was designed for evos, but with a little modification, it can work on other cars.
The plate mounts to the frame of the car and has the pin that the latch holds onto. The plate I was able to mount to a bolt that was already installed in the car so no drilling in the chassis was necessary. I had to cut off 1/4" off the threads because the pin was too long and was interfering with the headlights.
With it installed, I was able to mark the hole in the bumper by lining it up and pushing against the pin, where it would create a dimple in the bumper. Measure twice, and drill once. I used a unibit to drill it out to 3/4" and mounted the black latch.
Sorry I don't have any before pictures, but to give you an idea, the edge of my bumper was hanging out about 1-2" and there was a gap between the bottom of the headlight and the top of the bumper.
Don't mind the rock chip filled front bumper, it's going for repaint soon.