Stuttering / Lagging Nexus 7 [SOLVED]

I had an issue with a badly stuttering Nexus 7.

Everything that was supposed to be "Butter" was now stuttering, lagging or downright unresponsive.

Features affected:
Screen rotate
Turning screen on / off
Volume control
Keyboard pop up
Unresponsive Application
Unresponsive OS (even the screen wouldn't switch off with the hardware button)

I Googled around, read up the Currents fix and applied it, but it still didn't work.

Android 4.2.2 rolled out, but I haven't got it yet and didn't have the patience to wait.

Growing up with MS Windows, I had a strange suspicion it had something to do with a page file or a swap file. And so I continued Googling about Android page files or swap files or minimum space issues but came up empty.

So, on a hunch, I started to delete things.

Initially, I had left 1GB of free space, just because.
And I had recently downloaded some more files, that reduced it to around 800MBs free.

Not good.

After deleting a couple of large-ish CBRs and an episode of Battlestar Galactica, I now had slightly more than 2GBs free.

And my 16GB Nexus 7 is back to its snappy self.

Conclusion: A 16GB Nexus 7 requires 2GBs of free space to run smoothly.

Made L5 Today

I made it to L5 today.

Found a portal with only 1 resonator, half drained, in town while I was out with the family for dinner.

Perhaps the attacker had left the area, having run out of XM.

With only about 1000AP remaining to level up, I didn't do anything too fancy. Stepping into the periphery of the portal, I deployed 7 resonators and recharged the lone 8th reso which had survived.

Level up.

Satisfied, I left to rejoin my family. Thinking back, I think I forgot to hack it for resources!