Well, I have a 2nd AR that I didnt really drop the money on a $200 trigger replacement, so I started reading about "trigger jobs" and "polishing".  

Before pulling the trigger group out to do one of these jobs (which involves modifying the springs), I thought that I would try lubing the sear surface and work the trigger several times to see if that helped the "gritty" feeling I had in the factory trigger (via lower parts kit).  

I found some helpful videos on youtube, but when I was opening my safe, I noticed some extra wheel bearing grease on the door rods.  Hmmm I thought ya know that might just do the trick.  So I grabbed a "dab" of it on the tip of a small screwdriver and smeared it on the sear surface.  Then I commenced to working the trigger - set/unset while keeping it from hitting the receiver.  After about 10 minutes of this, the trigger feel improved dramatically, to the point Im satisfied with it.

So there ya go...the 10 minute trigger job.

Wow
Lubed it and now it's GTG
458

Triggers tend to smooth out after they are broken in a little.

Grease will attract dirt and eventually the trigger will feel worse then before.

This man takes his triggers extremely serious...i knew a 10 min job might not work for him and i guess by default...me

This is true, so you must be VERY sparing in using grease there.  I grease the PINS when I install a trigger and hammer, which helps a whole lot too.  A TINY spot of very light grease (I use Tetra) can make the engagement surfaces slide much smoother, but anything beyond that (a pinhead amount, at most) will be a problem.  And always apply the grease, cycle the parts, then REMOVE THE DISPLACED EXCESS GREASE.  This last part is often skipped and that leads to trouble.

Eastwood; don't worry about the grease unless you dump dirt into your gun. After a few hundred more cycles you may want to clean the FCG, check the action of the trigger to see how it's doing and lightly oil it . At that point you shouldn't need the grease anymore.

i  personally beleive that the very best trigger group grease is NECO MOLYSLIDE. frank white [compass lake engineering] swears by this, turned me onto it years ago when i bought a service rifle from him. a $5 jar will last a lifetime.