I just found five discount vouchers printed in January this year, but I obviously haven’t handed them out yet. They were valid for six months and expire at the end of this month.
They are printed on special watermarked and textured paper so it would be a shame to let them go to waste. Who wants to grab one? They’ll give you a 15% discount on your project.
Normally, you can only use one per project, but if you’re in the United States and you contact me by Monday, I’ll let you use two for one project because it’s the 4th of July.
I promise I’ll listen if you can come up with a better reason why you deserve two. 
Tags: discount certificates, discount vouchers, Science, SmarterScience
If you want one for a friend or colleague, or heck, your nice niece or your neighbor, that’s fine too.