Well it's sure a nice plan to pack a light bag and just go, I did it many times around europe when I was 20. And enjoyed a lot, without smartphone or computer, just me and friends.

But now we got smartphone and services in our hands, why not use it? I've booked a flat from airbnb the night before leaving to london during a barbecue with friends, in 5 minutes I had a place to stay.

I think in some way apps are really simplifying our lives. It all depends on which and how we use em.