Balsamiq is a good piece of software but I wouldn't put an effort to ask for a free copy of especially when I'm broke. Instead, I would rather use pen and paper

Balsamiq is a good piece of software but I wouldn't put an effort to ask for a free copy of especially when I'm broke. Instead, I would rather use pen and paper. If you feel you really really need the software to aid you in building your product then be a good customer and pay the license.