The Quick version of The Complete Children's Party Survival Guide
Invitations
Only invite as many children as you can comfortably accommodate.
Avoid inviting known troublemakers.
The optimum time for a successful children's party is
two
hours.
Avoid adding additional time at the beginning and end of the party for taking coats off, putting them on, giving out party bags, etc.
Make a separate list of the party time and the names and number of guests invited.
For more detailed information on the above points see
Chapter 3
of:
Invitations
Decorations
Parents
Presents
Game Time
Prizes
Let's Eat (1)
Let's Eat (2)
After Tea
Party's Over