After all of my worrying and stalling, Alex took is first bottle today without fanfare. I loaded it up with 3 ounces of expressed breastmilk, and he really only ate half of it (so the other half ended up in the trash, boo hoo). Still, Daddy was able to give it to him with no problem at all; he latched on fine and drank away. He even reached up a hand and held on to the bottle. That part really got to me -- all I could think was "NO! He's only supposed to reach up and touch me, not a piece of plastic!" I was genuinely sad to do it, but I was afraid if I waited much longer, he wouldn't take it when I go back to work. Now, we'll just do one every other day or so to keep in practice. This also means I will be able to use my birthday present.