How do I pour from a dutch oven without making a mess?
Some dutch ovens are easier to pour from than others; it depends on the how the edge or lip of the pot is curved.

If you have one that is not easy to pour from, minimize the amount of pouring that you do by transferring the content out with a ladle... or since ladling can be slow.... I use a glass measuring cup as a scoop.  These tend to pour quite well, hold a lot (I have three sizes, including one that holds a quart or liter) and have a handle so you don't get your hand messy.

Once most of the content is transferred, you can pour the last part.  Usually this will not make as much of a mess, but if it does still drip down the side of the oven, there was much less of the product involved.

Lastly, do the transfer in or over the sink.  This won't save you from having some of the content escape, but it does make cleanup much, much easier.