Hacksaw Bodgit

I was trying to think of an angle on Hacksaw Ridge (amazing 2016 film) for the title but couldn't work it out so called it what it is.
Marlane bought some shelf dividers to tidy the girls cupboards. Great idea but they are just a bit too long, they needed 2cm taken off the edge.
Now, knowing me I would take it off the wrong end but, luckily, they had a clip on one end that goes over the front of the shelf so only an idiot could get it wrong - stop that, I know exactly what you are thinking!
I measured 2cm top and bottom, drew the line (permanent marker as it was shiny plastic) and it was straight, I used my 31cm plastic ruler.
As it was my first one I tried my electric reciprocating saw with a hacksaw blade. It worked but was very messy and it took a lot of sanding of the edge to get all the burrs off and make it look neat. For the other three I used my hand hacksaw and it was very much easier and a lot neater.
The one that wasn't so good is not a big deal really as it is against the back of the cabinet anyway.
Must say that the dividers were a great idea and they make the whole shelf neater, stopping the neatly folded tops, shorts, and T-shirts, from falling over and getting mixed together.