Every time you use your front door (at least once per day for most people) let it remind you to check yourself.

Spread the word amongst your female friends and family about #bigknockers and encourage them to take part.

To tell other women that you have checked yourself, and to encourage them to check themselves as well, upload a photograph of your front door to Facebook (preferably with a knocker) and use the hashtag #bigknockers in your post.

We will continue to market the #bigknockers campaign as well as donating profits from the sale of our Bull Ring knockers (used in our advertising for #bigknockers, as seen above) to a local Breast Cancer Care charity.

Also consider adding a add link to @compositedoorscardiff as well as this will help popularise the campaign and help to raise money - read on...

Men will probably ask what your post is about, but this can only help to make this a talking point and spread more awareness.