I've been brainwashed by .mil, but I'm a firm believer that rifles need wiped down as one of the earliest priorities of work every day. I keep a set of GI rods, a bore brush, and the "tooth brush" in an old buttstock pouch on my fighting load, same with a hank of knotted 550 and a little bottle of oil. I like the USGI mini-clp because they don't leak or accidentally pop open, but I don't know where to buy my own so I usually end up filling up a different little one that pops open and leaks occasionally. Not the end of the world, just annoying.
In my pack I have a stripped down tan OTIS kit that started life as one of the 5.56/7.62 USGI kits. It has the cable snake, .22 brush, some patches, the tiny screw driver, pick head, and half tooth brush that came in the kit. I also have a USGI chamber brush, a SAW tool, and either a 9mm brush. All of this is wrapped up with piece of old T-shirt and a larger bottle of oil if I'm planning to be away for more than a day or two
I use the kit out of my pack for almost everything, along with the full size GI brush and oil off my fighting load. The rods are mainly in case of a stuck case or barrel obstruction, but it makes a nice backup.