In reply to Gaston Rubberpants:
In the general way (assuming longish unknown pitches) I used to carry 0.5, 1, 2 x 1.5, 2 x 2, 2 x 2.5, 3 and 3.5, plus a couple of Aliens and a 4 if the route looked suitable for it.
These days I just rack up with what my partner hands me.
jcm