Spider, where to start?! (1 Viewer)

[pppppvvvv]

So, I have an ok field microscope, so I can see hairs on legs count eyes etc!
But how on earth do I identify spiders, even down to family level?

Exhibit a, from the kitchen ceiling attached. ~2-3mm body length

I have wild guides "Britain's spiders" , I don't get along too well with it

 

[salticus]

It's probably a young Zygiella. However, if I'm right, it's only familiarity with the species that has got me there because there aren't really any clues in the photos that might have allowed it to be keyed out.
Spines on legs can be helpful because some families have more than others
The number of eyes can occasionally be helpful because some families have six instead of the usual eight
The arrangement of the eyes can be useful sometimes