I chose the mathematical option: I used the X and Y axis.
20 east gave thus: 0, -20 (remember to reverse things)
a further 10 north gives: -10, -20
and so on. I just kept on staring at the spot where my coordinates got me and kept repeating those coordinates to not forget them.
When the SE and NW started, it got more complicated, but using 15 and 25 and rounding down when far from the center did the trick.
It worked for me, but maybe there's a far better system. Then again: we are all different. Who knows what will work for you?
Something else: shouldn't this thread be in the wannabees section?
(And please note: the selection team monitors PPRUNE just as we all do... They know you know all this stuff in advance when deciding on your case.
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