clearing out, finding blessings

i'm spending more time than i wish (dialup) clearing out my inbox. each time i do this, i come across an email from a friend that i need to respond to but words escape me. in her email, she tells me what a blessing i've been to her in the short time we've known each other. never do i read the email and think oh, of course. instead, i just look at the subject line and say wow, wondering, each time, how in the world God is able to use me like that.