Widgets For Home And Single Posts

On my blog, I set it up so that some sidebar stuff shows only on the “home page,” some only on single posts, and some on every page. What I am looking for is a way to do that with widgets, if possible.

I have been hunting around, but, cannot find a plugin or anything that states how to do that. I have tried adding the php code such as would make it home only into a text box widget, no dice.

Anyone have any ideas?