To this point, I've had immediate plans for spending all my mythology tomes. I started with my +1, then Hero's Ring since I could never get my Strategos to drop. Then, I purchased my Cleric pants knowing that I'm unlikely to finish T5 any time soon (plus they're BiS).
Now I'm wondering what I should buy next. I have my Allagan gloves and have seen the boots drop often enough to feel it's only a matter of time before I get them. I've already managed to clear T4 so I feel I have a real shot at getting my chest drop. I kind of feel that since I'm already capable of clearing T4 but nowhere near capable of clearing T5 (and won't be for a while) that I should save up my myth and see what I manage to get from Coil.
There are a couple of obvious options; boots would be BiS, I have the Allagan hands but Clerics would be BiS and I could always get the circlet.
I'm curious... how is everyone else spending? Or is anyone saving?