Engagement Party at Home Questions

For those that held one at a house I have some questions.

1. How was food served (catered w/ hired help or everyone served themselves)?
2. Did you have a bar set up with a bar tender or did people serve themselves?
3. Did you rent chairs? From where and price range.
4. Did you rent a tent? Approximately how much.
5. Recommendations on caterers you used.
6. What about plates, cups etc. Did you buy them at a store or rent them?
7. Did you rent tables? From where?

Thanks everyone for your help.