This article is simple -

 The best things to do in Goa is   1) wash the elephants on a private tour (much cheaper), dont bother with the ride. wash them twice!

                                                            2) Visit the water falls, again do this on your own, cheaper and quieter and no rush

                                                            3) Taxi it all day! If you pay more than 1000rupees for a taxi for the whole day then your being robbed.