"How do we get great designers? Great designers design, of course." --Fred Brooks
"So how are we supposed to get great architects, if they only get the chance to architect fewer than a half-dozen times in their career?" --Ted Neward
The Architecture Kata is an exercise focused on practicing architecture. I've attended one at XP Days Hamburg and I think it's a very valuable exercise for any serious software developer.
To attend this event you only need the will to learn, be open to have conversations about architecture and, of course, programming experience. You will not need a laptop.