For the young ones, give them ample opportunities to eat finger food.  This is the very first step towards self feeding.  When the baby is older and shows interest in feeding himself with a spoon, do not be afraid of the mess and let him!  You can find ways to contain the mess, e.g. placing the highchair on top of some newspapers, but do not miss this opportunity to let your baby practise self feeding.  You can continue to feed him with one spoon but give him another spoon for him to try feeding himself.  Once you miss this opportunity and the child get accustomed to being fed, it may be hard to get him to feed himself when he is older.

Some things are not allowed though, e.g. throwing food.  What I do is to very firmly say 'no'.  I will guide him to put food in his mouth.  This is to show him how it should be done.  If the child continues to throw food, I will take away the food or the spoon and disallow him to handle it.  For the next meal, we will try again.

14. Vegetables before fruits?  Fruits before Vegetables?

To me, it really does not matter.  Some say that introducing fruits before vegetables will cause the baby to develop a sweet tooth and not like vegetables later on.  My experience does not confirm this.  After all, breastmilk itself is sweet already.  When the baby first starts solids and seasoning is not used, sweet vegetables are great for making the meal delicious.

15. No salt and sugar during the first year

There is no need to season the food with salt or sugar, especially during the first year.  One of these days, do this experiment : eat a spoonful of white rice and chew slowly, keeping the rice in your mouth as long as you can.  You will find that it will gradually become sweet.  This is because the enzyme in your saliva breaks down the carbohydrate in the rice to a simpler form, which is sweet in taste.  I believe that unlike adults, who have been exposed to all kinds of food and seasoning and high salt and sugar content in food, babies have 'untainted' taste buds and are more sensitive to the natural flavour of food.  Hence, something that is very bland to us is quite tasty to babies.  Hence, seasoning is actually not necessary.

Secondly, the baby's system is still young and immature.  Having too much salt and sugar will tax their organs.  Even adults are advised to cut down on salt and sugar for health reasons.  Most food are inherently sweet or salty.  Hence, it is not necessary to add more salt and sugar.

Further Reading :

http://www.who.int/child-adolescent-health/NUTRITION/complementary.htm