I don't know what its like in USA, meg, but here in my city there are a lot of businesses who would hire you for ten hours a week or so bc it helps for them to have backup in case of call ins and sicknesses and such. This is a university town though for the most part though.. Might be different there. Good luck though, I hope you can find something!
My boss said this morning that I am always welcome to try public speaking and tour guiding within the company. He also explained the full dollar raise we all got. I love my job here, Dave's great to work for.