there should also be a new challenge. I am thinking that challenge 7 could be called for lazy people. The description could say: Do you want that item but you d not have enough? well, with this challenge you get 5x more XP. there should be 4 save files to this challenge. and done.
I have two new garden ideas. one could be special garden(unlocked by getting all plots on another another garden) and secret garden(unlocked by finding an easter egg)
 "Greyhound Racer"){kind=icon}
 "DuckLife"){kind=icon}
 "Watch Paint Dry"){kind=icon}
 "Anti-Idle: The Game"){kind=icon}
 "This is the Only Level"){kind=icon}
 "Boxing Live - Round 2"){kind=icon}
 "Click-speed test"){kind=icon}
 "Learn to Fly 3"){kind=icon}
 "Kongregate Addict"){kind=icon}
 "Papa's Pizzeria"){kind=icon}
 "Mario Kart HTML5"){kind=icon}