I wrote this script three years ago to grab screenshots from my networked Agilent oscilloscope at work. Ten lines of Python, but I use it every day. It saves me a ton of time moving screencaps from my scope using USB (ugh). More importantly, it spares me the agony of trying to rename them and classify them in a batch, hours after I took the original capture. Definitely the best junky little tool I've ever made.

http://cushychicken.github.io/agilent-screencap

I also have some unpublished ones for doing worst case setup/hold analysis in point-to-point DRAM interfaces.