To move through the game as quickly as possible, follow these tips:
Always use the most expensive frogs at your present level.
Use these frogs to breed and provide eight eggs.
You should now go to the phone settings and change the time on the phone so that the eggs hatch out.
You can now return to the game and sell your new frogs.
XP is given for breeding and money is given for selling the frogs - once they've been sold, you can set the time back to what it was before.
Added by: MongooseGeneral Sep 4th 2011, ID#354