The answer, obviously, is more bikes.
I have one 1x11 bike. Technically, it's a Cross bike, but it gets used mostly on road, with a few excursions up bridleways. Sometimes round here it's difficult to tell the difference. The gearing is 44 up front and 11-42 at back (Sram Rival). It works just fine, but is perhaps a little overgeared for anything over 10% gradient.
For the winter past, I geared one of my bikes with an 11-42 at rear to go with the 50-34 front. That works! 34-42 will get me up anything, pretty much. I only needed a 15mm dérailleur extender - and even that was probably longer than necessary. That's Ultegra Di2 8050 with the Shadow rear mech. I reckon that would take at least 38 without any extender. The summer fit for that bike is 11-34 on the back (on a much lighter wheelset), and that's pretty good too.
I have only one triple left in the stable, and that's Campag Athena. The granny ring is the usual 30, and the biggest cassette I could get was an 11-29, so it falls well short of the 34-42 on the above bike, and even the 34-34 of its summer setup. It's cool to say it has 33 gears though - even if about 25 of them are duplicated!
Edited to put the correct Sram groupset!
