So after much debate with DH, friends and myself I've decided to resign from my job and become a stay at home mum for a while (flex wrk request rejected ...). I'm currently still on maternity leave and taking annual leave after for 4 weeks. Supposed to go back in Nov. I was just going to send a resignation letter at beginning of October but am in two minds whether I should also send an email to my manager to advise him I'm resigning and letter is on its way...or should I just let him be surprised by the letter??