Marking trees

Today was my 1st real action doing anything besides designing the floor plan for the cabin. I have so far spent probably 60-70 hours getting my plan just right for me with a nifty little 3D design program called Plan 3D. Its not free, but is only $30 for a years use so well worth it so far. Now that I think I have it just perfect I decided to do some actual work today and went and marked 25 trees for cutting. I think I will need about for the whole cabin. Its going to be pretty small to start out with, just 28x32 but since there is only myself and a big dog that should be plenty of room