I tried the baggie method and it worked okay. For the past week, I've been wearing protective styles a little more. I've been putting a little leave in conditioner (one that I don't use that often) on the ends in the morning and night and I've been sealing it with a mixture of oils (jojoba, sweet almond oil and black castor oil).
Someone on this forum suggested castor oil on our fine ends to keep them healthy and it's been working great for me.
I'm not sure if you need to cw everyday. I've been wondering the same thing, I think because my hair is fine that everyday might be a bit much for me because of the manipulation. For two weeks I've been experimenting with conditioner once in the middle of the week and the rest of the days misting my hair a mixture of water, leave in conditioner and oils. My hair seems to like this. HTH!