I feel the same way, that there are way to few feats. I have also made a load of feats for my own campaign. I just try to avoid feats that give a simple bonus, like +1 to hit with a weapon (I dont use weapon focus / specialisation etc).
In my opinion, Avoiding the Inevitable is okay, but its bonus needs to be higher. In most cases, players wouldnt bother rolling another dice for a simple +1 bonus. I hardly ever remember to use Dodge, I simply forget since its only a +1 AC bonus against one person.
I normally design the feats so the emphasize a certain part of a country. I make individual lists for different countries. For example, in barbarian countries, you have Barbarians Toughness that gives +10 hit points instead of the "pretty" useless +3. You have Power Attack, which only barbarians are allowed to use. You have Greater Power Attack, which gives you +2 damage for every +1 you sacrifice to hit... etc. This emphasizes the barbarians as being crude and tough. On the other hand, the more civilised, Knightly country has special feats for wearing heavy armor, using crossbows etc. I took some advice from the "Improving Heavy Armor" thread. You should check out alot of the thread here, they are quite excellent for getting inspiration for new feats actually.
http://enworld.cyberstreet.com/showthread.php?s=&threadid=41075
I found alot of useful stuff for armors there... For creating unusual weapons, check out this thread...
http://enworld.cyberstreet.com/showthread.php?s=&threadid=42565
Has some good idea for weapon-making feats that arent simple increases in existing feats. Another thread here has some good pieces of martial art feats...
http://enworld.cyberstreet.com/showthread.php?s=&threadid=42453
The following thread discusses some of the things you suggested for the Greater Craft feats.
http://enworld.cyberstreet.com/showthread.php?s=&threadid=42664
Generally, I found bundles of advice on many different aspects of feats here. I think that I look at fifty times as many threads that I respond to. And, many times, the things I was thinking of asking has already been asked before and discussed, like the Greater Craft feat, that I can use that information and discussion instead of starting a new one. Thats what the greatest part about Enworld is in my opinion. Its not that you can ask alot of clever D&D people some questions, its that most of these questions have already been asked and answered
Anyways, Welcome here Urza (as I see that you are quite new).