In reply to purplemonkeyelephant:
> Is the answer just having 3 ropes?
Yes!
Assuming that you still see yourself climbing in another 5+ years then there is no such thing as having too many ropes. You will wear them all out eventually so you might as well have the right rope available for each trip/climb.
I've been thinking about ropes a lot recently (just added a 40m x 8.7mm single to my collection) and can probably sum up my personal thinking as follows:
1 - use a single rope where sensible.
2 - use the shortest sensible length.
3 - going super-thin or long is a luxury best reserved for a second rope/pair.
My 'workhorse' ropes are:
30m x 10mm single for indoors/outcrops/scrambling
50m x 8.5mm doubles for Trad and Winter
60m x 9.8mm single for (UK) Sport
Just added:
40m x 8.7mm single for easier classics; Rock, Winter & Mountaineering
Top of the shopping list:
60m x 7.5mm doubles for Scottish ice routes and the Alps.
Future (for next overseas trip if/when it happens):
80m x c.9mm for Euro Sport.
Basically in each of the three areas I ideally want to have a basic option that I use most of the time and a longer, thinner higher performance (but less durable) option I just use when really needed. For keen climbers having a basic 30/35m, a 60m and thin 70/80m is likely to work really well.