> Ironically, the biggest problem was actually *wires*. I bought a box of 

> nice compartmental box and there's quite a lot of wire in it, each length 
> in a different colour, with the ends neatly bent to a right-angle.) 
> Unfortunately, the wire is so utterly stiff and unbendable that I had a 
> lot of trouble using it.

It is meant to be like that, so you can plug it straight into the 
breadboard.  If you really need to bend it then get a pair of needle nose 
pliers and make a neat bend.  Those pliers are also very useful for plugging 
in and removing the very shortest wires.

> Makes it kinda hard to rest the ends of the wires on both battery 
> terminals simultaneously when they're utterly rigid though.

That's what battery holders are for.

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