Upload & Sell: Off
Realistically, my travel kit is a fair bit larger than 3 lenses:
Some form of 28 - looks like a Nikon 28mm 2.8 ai-s at the moment
Canon 24-105L (a lazy AF lens is essential IMO)
Some form of 50 - in the past the c/y 1.4, but probably the rokkor on the next one
Some form of 85/90 - probably the oly 90 Macro or the c/y 85
Voigtlander 180mm 4.0
And maybe even a c/y 135 on my next trip - I love the look of this lens.
You may think I'm crazy, but, particularly on my next trip, which will be upwards of 12 months solo, photography keeps me interested in the world around me.
I wouldn't necessarily carry all of this around at one time - the 24-105 stays at home much of the time, though sometimes it would be the only lens I'd carry with me. Other times, I'd carry a body with a small prime attached and another small prime in a pocket.
As long as it all fits in the bottom section of my Kata backpack, I can carry it. I just cut down on clothes - I don't mind getting smelly.