well this vid is something to be seen, .
http://www.youtube.com/watch?v=kMu-HFPk7UQ&NR=1
i like the way he uses the scrap mortar to create the next brick placement.
I can't remember if i've given you this vid link before : http://www.youtube.com/watch?v=lf18CbVJzFo but if i have then have a look again at the 18sec mark, you will see him holding a red plastic tool and he will use it throughout the video. From 8.20mins is all good info, 8.43mins is a great shot of what it does. The VERY LAST second you can REALLY see how this tool could help you/me. The problem with this product is that it is SOOO brilliant and sooo simple that you can build it yourself !
STAY tuned as I have built my own for FREE from items i have got from building sites, i'll post it a bit later WITH images and update this blog with the link.
Its a GREAT tool for the novice so watch the vid.