HELP! Can anyone give me some ideas for articles?

OK, I am a copy writer for a sign company. I have been igned to write 8 SEO articles a day with key phrases that are about signs. My problem is this, I want to make the articles interesting, so I need some ideas for angles. Most of them have been about the making or designing of a sign. BORING. I am also not "from" the sign industry, so a lot of this stuff is beyond me. Yesterday I managed to write 7 articles with marketing ideas for real estate and threw the key term in the article where appropriate. I want to expand what I write about, but what would someone reading about signs want to know. HELP!