Creativity is an elusive subject. Where does it come from ? How do you become creative ? Some people believe it's a brain work out, you get better at it with practice. Did you ever notice how good your mother is at crossword puzzles ? Well maybe it's because she has solved one a day for the past 20 years.Others would say it's all about looking at things differently to step out of the box. Ad designers are usually good at it (I guess they are paid to be good at it...).Here is a selection of surprising ad campaigns :Truth is we all have a personnal creative process. This video enlights 29 ways to develop your creativity, so what's yours ?