Man, lots of stuff, sometimes big, sometimes small:
--Shop insurance every year
--Shop wireless/wifi acts every year
--Charge everything, even small stuff to get cash rewards and work the float
--Buy all gas at Costco. Big savings in Cali especially if you use their visa card
--Buy everything possible on Amazon, with their Amazon card. 5% back, free shipping and no tax in most cases
--Sunday movies at local Theater. 1st run movies $6.50 versus $13
--Eat out only once or less per week
--Make own coffee with whole beans from Costco. Great coffee, far less than buying out
--Buy all wine at Costco. Yes, we seem to like Costco : )
--Share a Netflix and HBO streaming acct with other family members
--Combine trips around town efficiently. No one-off trips.
--Turn over all liquid bottles near end to get all remaining product.
Many more, but good start.