Do I need an invitation? some many reasons why would I say yes, even if you not planning a formal party.
- tells us about the location
- time the party starts and finishes
- dress code
- what type of party
Invitation can be very useful as well, you can add little note to let the guest know about other things for example
- non-acholic party or bring your own liquor
- where the guest is registered
- if the guest needs to bring anything else ( towel for a pool party)
And there is nothing more exciting than to get an invitation, it always makes us feel so special.
Here is a video from my youtube channel that gives a little more explanation and suggestions on where to purchase and other info etc