It's an interesting idea even though I think that some of the savings ideas are unimaginative.
Take a staycation? Really? What a novel idea! Wow, and to think that my parents did that wayyyy back in the '70s.
Walk or bike instead of drive and save on your gym membership. Get a workout while you commute to your job. Arrive sweaty and exhausted to start your day. Your co-workers will appreciate your dedication to the environment.
Cook at home. Another stroke of brilliant, out-of-the-box thinking.
Cut cable services. Is there an echo in here?
Avoid impulse purchases and "today only" deals. Half the threads on the budget board would go unread!
With 98 days to go between today and Labor Day, you will need to put away $10+/day in order to meet this savings goal. Not necessarily impossible, especially if you're wasting that much on a daily basis. But with so many people struggling to make ends meet, $75/week is not part of their discretionary spending.