The video ends with a black screen and a quote. Ideally I would like to add to the length of the video and have one or two frames of written messages along the lines of "Free Next Day Delivery", " Add to Basket and experience the... ", that sort of thing, but I've no idea how to go about it. I have at least a thousand video views per month and more than 80% are getting to the end of the video, so that's 800 people I could be engaging with a call to action.

Ideas for calls-to-action also be welcome, but what I definitely can't do at the moment is edit the video. I need some free or cheap software and a reasonably straightforward way to do this. I'd be grateful for any suggestion, thanks.