Ellie, I use Freecycle, I NEVER list my address! I take emails for response, and sometimes I list my phone number (which is unpublished, so no one can back track it to me.)

Sometimes I'll have someone come to the house for a pick up, mostly we meet at the super market parking lot. The stuff is free after all!

As for the knives: Salvation Army / Goodwill sound good. Or call your Town Hall, they will redirect you to the trash collection for your town. They will tell you how to handle it. I call all the time as I am cleaning out my folks' stuff (shhh, don't tell my dad!)