In reply to StevenF:
Depending on route;
Up to 5 sling draws made with 60cm slings. Used for small threads and spikes, if I want the security of a screwgate I will just double back the wiregates that make up the slingdraw
2x 120cm slings (one flat one aramid) carried over the shoulder, joined with a snapgate. This enables both handed use and can be removed from under a pack, however if I had a slighter frame the aramid one would be a pain to have over the shoulder.
1 or 2 240cm slings with screwgates, twisted, right at the back of the harness for belays etc.
I used to have 60cm over my shoulders with screwgates and 120cm and 240cm twisted with screwgates on my harness. Changing to the above method has made my rack lighter, more versatile and less faffy.