I understand it can't be the right answer for this question, but nevertheless, i think it's an interesting question. Feel free to close it if you think otherwise.

I'm interested, how prototyping is done in a proffesional EE environment? Do you do your prototypes on breadboards, on copper clad boards manhattan style or you just draw schematics, order pcbs made and assembled and work with them, hacking here and there is necessary?