If you're throwing a party for your child, you can invite guests by sending them invitation texts or cards.

You only need to give the following information:
(Child's Name)'s birthday
Venue (address):
Day and Time:

Birthday parties usually only last for 2 hours.

At the bottom of the invitation I always included:
Please no dropoffs.
Please let me know if you child has any allergies.

If I am a guest:
Can I bring (Ella)'s 3yearold brother with me? Unfortunately I don't have childcare arrangements.

Goodie bag can include:
a toy
a sheet of stickers
a pack (or two) of sweets
a party hat or other party things

It's gone by like a flash! (idiom) = time has gone by so quickly