Repeating Myself

I have tried everything. Cajoling, yelling, threatening, statements of fact, statements of feeling.
Nothing works.
I still can't get my older child to put her dirty clothes in the hamper. And the hamper is right there in her room.
I read this parenting book and it said instead of yelling, try statements of feeling. here's what happened:
Me: It upsets me when I find your dirty clothes on the floor.
DD: Duh.

Yesterday I did the yelling route -- arms waving, eyes bulging, the whole route. Which got her upset and was counterproductive.
Today, I came in and said, "Please pick up the striped shorts, the Dora shirt, the white slip, the nightgown, the robe, the sleep pants, the pink shirt and the underwear off the floor." She'd worn all of those TODAY. and they were ALL on the floor. so, my dramatic yelling of the previous day had had no effect whatsoever.
sigh.