First of all, I don't understand your taste. I have no idea what you would like to have as a gift. I know what I would like, but that is probably not what you would like. At all. When confronted with the task of choosing a gift for another person, I always feel panicked. like I'm being given an exam on you and your character and what will make you happy. If I choose wrong, I will have offended you, and your house will have a piece of useless garbage in it that you hate.
Second of all, I just don't think about getting gifts for others. This is something that happens to me frequently -
I meet Friend X for lunch. We sit down and start chatting. Then suddenly Friend X will present me with a brightly colored bag filled with awesome things. "Merry Christmas!" she'll say happily.
I feel sick to my stomach. But it's December 3rd! I'll say to myself. Out loud, I'll say "Oh, I'm so sorry. I didn't get you anything. I didn't know we were...doing the present thing".
And she'll tell me that it's ok, of course, but I know it's not ok. I have failed the friendship/generosity/thoughtfulness test. I'll resolve to get her a present and give it to her the next time I see her. But then, time passes, and giving her a present would now seem awkward and out of place. Also, I have no idea what to get her.
Also, I don't ever expect to receive gifts. It never even crosses my mind that someone will buy something or make something for me. For some reason, it's just not part of the Dana zeitgeist. I don't personally need to receive gifts to feel loved or appreciated. You could never get me anything and I wouldn't care in the slightest. I seriously wouldn't even notice the lack of gifts. Maybe because of that, it's harder for me to remember that gifts ARE important to some people. Does that make me a sociopath, lacking empathy? Probably.
And so I say to you - yes you - if I have ever neglected to get you a present, please forgive me. I am very sorry. I hope I'm a good friend/relative in other ways, and that it makes up for my lack of gift giving ability.