i have took one my guitars when i was a kid (a cheap classical that my father gave me when I was a kid) nowadays i don't take any instrument with me, but i've been thinking lately to get a charango or one of those martin's travel guitar
btw , here you have a link about charango, just in case you are curious http://en.wikipedia.org/wiki/Charango
Esteban
btw , here you have a link about charango, just in case you are curious http://en.wikipedia.org/wiki/Charango
Esteban