I've also started getting this rubbish in the last few weeks...
On receiving each one (to my Gmail address), I do the following:
Hit "Show Original", and copy the header info.
Come to SpamCop and enter it, as usual. I also report the IP address(es) at abuseipdb.com
Forward the original message to the following addresses: ec2-abuse at amazon.com , email-abuse at amazon.com , abuse at amazonaws.com , abuse at google.com , and network-abuse at google.com , after pasting the header info in.
If the phishing e-mail purports to be from a well-known company - Costco, PayPal, Chase Bank, etc - I also forward it to whatever their abuse / anti-phishing report address is.
I've noticed that the latest batches now also include cisco.com and yelp.com addresses.