Coupon-ing tips

B
So I'm trying really hard to save money and I've been trying to find coupons every time I go to the store. I'm mainly wanting to try and save on household basics and baby items. Especially diapers, wipes, and dr brown bottles. 
Can anyone give me tips or tell me where I can find all of these coupons?
I'm not very good at it. 
The stores I mainly go to are target and sams. There is a walmart in town, it's just on the other side of town. 
Thanks in advance to anyone who can help me!

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