Holy cow twinmom! I need couponing 101. How do you suggest getting started?

I a bit intrigued by the challenge, I must say..

M: 42
H: 43
M: 8 years
S7 and D4
H has D19 and S25 from previous M
Bomb: 3/6/14 OW discovered, EA & PA
1st separation, 10 days, decided to reconcile & moved back in. Fail
2nd separation: 5/1/14