How to most effectively use teaching assistants?

[Advice]

I taught a lot as a graduate student, and I became used to teaching/directing courses without teaching assistants. I am in the fortunate position of having this resource as a new Assistant Professor, but I do not think I'm using it most effectively. I should note that my TA's are not sociology graduate students--they are graduate students in a related discipline. I am having difficulty coming up with tasks for them other than entering grades. Any tips on how to most effectively use teaching assistants? If you have one, what do you have your TA's do? Anybody have great experiences to share--from either role (TA or Professor)?

[Some ideas]

Have them write up a few exam questions for each lecture
Have them review background literature for a few topics that relate to the work they're interested in
Update slide graphics or make them more interesting
Have one make sure that everything on blackboard is updated
Have one make a self-study quiz or two that can go on blackboard. Then they learn the technology and you look "responsive to student needs"
Let them do a guest lecture or two - good practice!
Ask them to make up handouts for the recitation section
Writing up the study guide for the final exam
Finding new examples, case studies or videos to use in class
Finding and ordering class-related books for the library
Etc.

Don't overuse, but have them track their time and give them an "if time" list like this to work on. All of these things are helpful for their teaching and things they can talk about in interviews.

[ILikeYourStyleDude]

Madam/Sir "Some ideas", I like your style. I definitely like your style.

[Advice]

Thanks for sharing, Some Ideas. Those are really great suggestions.

If anybody has additional ideas/experiences, please share!