I didn't really mention online coupons when I talked about Couponing 101, so I will do it here.
Most manufacturers offer online printable coupons these days. You can usually print out around 2 copies per coupon.
Here are some of my favorite place to visit for online coupons:
Right at Home (they don't always have coupons, but sometimes they do have good ones)
Target Coupons - some are Target Q's (meaning you can combine them with a MQ) and others are MQs
There are many more out there, so do a search for your favorite brand, and see what you can find!
One of my go-to favorites is A Full Cup Coupon Search - Printables
There you can do a search for your favorite brand and they will direct you to where you can print the coupon! It's not 100% accurate, sometimes a particular coupon is no longer available, etc. but overall it has been invaluable to me and one of my favorite sites.
1) Make sure you plan on using the coupon, or you will waste printer ink & paper!
2) You should have an option to set your printer to "economical." If you can, do this because it will save a lot of ink.
3) Some of the websites have you put in a zipcode. Try yours, but also try some other zipcodes (think 90210, etc.) Different parts of the country often might have better valued coupons than your zipcode - and yes, you can print them too!