Special Cases

Two Edges FR/FL

FURwU'Rw'F'
R-thick inverse 6-move T
FRwURw'U'F'
R-thick 6-move T
DRU'R'Uw'URUR'
D'L'ULE'L'U'L
F(RwURw'U')*3F'
mine, but also from Joël van Noort
y'R2U2'R'U2'R2
from Mario Laurent
B2D2FD2B2
from Erik Akkersdijk
U2DRU2R'D'U'L'U'L
from Gungz
y'R2U2'R2'U2'R2

Two Pairs

xRURw2U'R2URw2U'R'x'
from here

Damage Control

RLU2L'R'
Dan2L (named after Dan Dzoan, who messes up and has to do this often)
F'UR'U2'RU'F
preserves LL permutation
BU'RU2'R'UB'
preserves LL permutation