Now, I'm no expert, but...
Amongst those who do bother to clean their firearms, I have observed a trend to "over lubricate"...
Depending on how much "crud" my particular firearm seems to be plastered with, I will scrub the crap out of it with a mild solvent, then apply lubricant SPARINGLY where required on moving parts. Some differences in my general technique is as follows:
.22s: As generally, I find there ain't a whole lot of stuff to scrub out of the bore, or a whole lot of cooked on carbon, I just use one of the triple-action products (currently G96) on everything. I leave a LIGHT film on all moving parts, and if the .22 is going to be stored, some in the bore. Otherwise, bore gets dried out.
Centrefire auto-pistol (would use same technique on revolver): Scrub the crap out of everything with a generous dose of Hoppe's 9 and a toothbrush, blowing goo away with canned air or a compressor (EYE PROTECTION!!!!!!). On my work gun, I am only allowed to use Hoppe's, nothing stronger. On my privately owned pistol, I do on occasion use Sweet's in the bore, depending on how many rounds have gone downrange. If possible, firing pin removed and bits cleaned with alcohol. Lubricant of choice applied SPARINGLY to slide/frame contacts, barrel/slide contacts. Mags scrubbed with alcohol or soap and water, and left dry, or possibly with a wipe of silicone.
Centrefire rifle: Bolt-actions, of course, don't need much except for a good cleaning of the bore, with an appropriate solvent. Let the chemical do it's work, and don't over-scrub with a bore brush! If shooting "questionably" primed ammo, I flush bore with 2-4L of water from the kettle to neutralize salts. If rifle is going back to the range within the week, leave bore dry. Otherwise, a light coating of preservative of choice inside, and a silicone wipedown outside. Semi-auto rifles have the added fun of layers of baked on carbon... I like my Swiss, as I can actually get into the appropriate parts to remove that fouling, as oppsed to the ARs of the world. I have found that a Scotchbrite plastic pad and a little dish soap works WAY better than any "gun solvent" on removing the carbon from the gas plug/piston area. Moving parts get a light coating of lubricant (currently "Militech"), gas parts left dry, exterior wiped with silicone, bore coated with Militech if going into the safe for awhile...
Gosh, sorry... Went off there - I hope info is useful! Basically, only lubricate enough to keep things moving. Any more just gets spilled on the sheets - Er... I mean gets splatterred all over the range!!
Neal