Sort your nuts out!
Heading off in the vertical world is always a gamble of efficiency do you go light and fast and run the risk of not having the crucial bit of kit to see you through the crux, or do you take the kitchen sink and struggle to get of the floor? With the majority of decent length trad pitches, I find it useful to have two sets of nuts (DMM wallnuts are my weapon of choice).
Split the nuts in to four sets, two sets of large and two sets of small. And rack one large and one small set on each side of your harness, this will enable you to do a number of things. If you were to drop a set of crucial sized nuts in to oblivion or can’t get at the set you need then all is not lost simply reach for the set on the other side.
Plus if you clip the nuts in towards yourself and if you need to replace a nut on the rack then all you need to do is rotate the crab on your harness, this will put the crab in the best position to re-clip the nut. All this can be done one handed!
there you go just a few thoughts, hope they are helpful. feed back is always welcome