As i sat on the train this morning i had a brain wave - why doesn't someone create a business where by they attach an extra carriage or two onto the train which contain fitness equipment? They have a captive market of hundreds just sitting there idle for at least 60 minutes to work and 60 minutes from work.

The crowd is mainly middle-upper class who commute to Melbourne daily. Therefore, statistics show that these are the people who pay for gym memberships etc. I could easily 'walk' my way to Melbourne every morning. It saves having to find time before and after work for a workout!