don't compare yourself to others

This pretty much applies to every aspect of our lives, no? But we'll stick to the couponing world.  

Different households have different needs. Just because this one other person has a dedicated stockpile room doesn't mean you should have the same. Sure it looks awesome but always ask yourself if it's really necessary for your household. You'll eventually become aware of how many bottles of shampoo (or whatever it may be) your household really consumes in a period of time. 

don't chase every single deal

You really don't have to chase every single deal, every week because:

1. there are sale cycles and that free toothpaste deal will be back very, very soon.

2. you will waste time and gas and that won't be saving.

3. it can be overwhelming and eventually burn you out. I personally experience this when I started.

I hope you keep this in mind when you begin your couponing adventures. Once you build your stockpile, you won't really have to go couponing as much.