Color code your slings
This is an old trick, but a good one:
Make all of the slings of the same length the same color. This lets you glance at your harness and grab the right length of runner that you need.
For example, try to make all of your single (60 cm) slings the same color, like yellow, and all of your double (120 cm) slings a different color, say blue.
Fortunately, manufacturers have gotten on board with this, and now the common color for 60 cm slings seems to be yellow or orange.
(Keep in mind you can shorten a double or connect two singles together to extend them if needed.)
Finally, sport climbing quickdraws aren’t used so much in alpine climbing, so you might want to save those for the bolted routes.
Here's a related tip: the 4:1 ratio
A general rule of thumb for a moderately meandering alpine pitch is to have about a 4 to 1 ratio of single slings to double slings.
So, maybe eight 60 cm slings, and two 120 cm slings. Of course, the length of the pitch and how much it wanders around has a bearing what you carry.
One double 120 cm sling in blue, and four single 60 cm slings in yellow.
Start with this “4:1” short to long sling ratio and you should be good for most routes.