Since jiberjaber has mentioned me, I'll contribute a little sooner than I was going to.
I tour/audax/do most things on a cross bike, an On-One Dirty Disco.
When it was new, it looked like this:-
On One Dirty Disco by
Chocolatebike1, on Flickr
Initially, for w/e credit card touring, I used a Carradice SQR Tour:-
12-09-29 Carlisle-Newcastle Dirty Disco Carradice SQR Tour by
Chocolatebike1, on Flickr
(This picture is actually from an overnight ride, Mcshroom's excellent Carlisle-Newcastle)
Audax mode (it was a particularly wet audax; waterproofs went in the frame bag:-
)
13-01-27 Dirty Disco after Mere 200 1 by
Chocolatebike1, on Flickr
Current set-up that jiber-jaber referenced:-
15-09-06 Dirty Disco with rack and luggage by
Chocolatebike1, on Flickr
Rack, Ortleib rack-pack, frame-bag and handle-bar bag.
Bike with moose but no rack-pack:-
P9060335 by
Chocolatebike1, on Flickr
I took this picture while I was waiting for jiberjaber to catch up
.
In the past, I have used a beam rack (different bike):-
10-05-15 Mongoose MTB Kona P2 fork Chester station by
Chocolatebike1, on Flickr
It's a Topeak rack and bag. It did tend to twist around the set-post.
I arrived at my current set-up because I don't like the way my bike(s) handle(s) when I'm using a heavily laden saddle-bag; the tail seems to wag, particularly when I'm out of the saddle. It's OK with the smaller bag and light loads.
The Ortleib rack-pack is very light-weight, as is the rack and it's also pretty aero. The drawbacks are that it's a faff to put it on- velcro straps and bungees in the picture above as a belt and braces approach- and it's very difficult to get stuff out of the bag during the day. Frame and handle-bar bags cover most "ride needs".
The Disco doesn't have fittings for a rack so mine mounts on the QR (no punctures yet; it'd be a real faff if I did have) and the seat-post clamp. So far, the set-up has been rock solid even over some rough roads at high speeds although I have to make sure that it's loaded correctly otherwise it can droop to the side.
One of the riders on the last Friday's tour was also on a Dirty Disco and she used a Bridge Street Designs bag:-
P9060330 by
Chocolatebike1, on Flickr
It's the bike on the far right of the picture. There were some issues with the bag bouncing onto the rear wheel over bumpy roads. We fixed it by wrapping a bungee around the bag and the saddle rails to raise it slightly and to stiffen the mounting.
All of my touring is "CC" based; I don't camp.
I always take 2 sets of cycling gear, particularly shorts/bibs. They don't weigh much and they're not bulky but I do enjoy putting on clean, dry kit in the morning.
My rack is an Axiom.