I had a rough start in my first town… I had no idea what I was doing, just enjoying the atmosphere of a new game, and about when I started to expand the buildings in my settlement, I started to run out of trees.
I discovered that farmers can grow tree saplings so I made 3 plots of oak saplings and began to replant my nearby forest… little did I know that these oak trees have 3 growth stages, and by the time I realized my mistake i had made a super-dense forest that was nigh impenetrable (and incredibly hard to cut down without making an even worse problem).