For areas of particularly dense forests, creating large tree bases with removable canopies allows you to properly hide your figures.
modeling
Making A Desert / Wasteland Terrain Cloth
The 1000 Foot General has a tutorial on making a desert / wasteland terrain cloth.
Making A Hedge Maze For Your Miniatures
Storm The Castle has a photo tutorial on making a hedge maze. I’ve been doing a lot of looking at hedge construction techniques as I prepare for my own hedge row project.
Magnetic Basing Instructions
The Wargames Table has a very useful article on making magnetic basing. Using a magnetic system can be useful both for movement trays and for transport.
For my part, I base all of my 28mm figures on one inch washers. Then, I line both movement trays and transport boxes with magnetic vinyl, of the sort used for signs for the sides of cars.
I’ve also found that I can paint the magnetic vinyl with no loss of magnetism. So, my movement trays have a green surface onto which the figure bases stick.