AIDA:
Attention
Eye catching - with good use of a headline, colour, design, logo and shape etc.
Interest
Now you have the attention of your customers, you need to keep them interested. What benefits can you provide?
Something that is new and different?
Special offer?
Discounts?
Desire
Create desire, include a photo of your product or service and provide persuasive information on the benefits. Bullet points are a good way of keeping this information concise.
Action
The end of the leaflet should encourage your customers to take action. Be clear what you want customers to do next e.g. use the voucher, visit the website, attend an event or call?