I started the Garfield about 8 years ago and then we had a baby and I just picked it back up again in February. I've finished the foundation and the main staircases and all the little pieces like the fireplaces, stairs, chimney, etc. Dry-fitting before gluing is extremely important as the machine cuts are a little off sometimes. Having some blocks or something that has accurate 90 degree angles is helpful. I've been using leftover 4x4 travertine floor tiles. I keep a Dremel handy with a 180 grit sandpaper attachment in case something needs a little more intense sanding. Also planning how you are going to clamp something before you glue it is a good idea. The "Gina's blog" mentioned above has some great suggestions and lots of helpful photos. I really like her idea of dry fitting all the walls and staircases and papering them before you do the final gluing as the front rooms will be very difficult to get to once everything is glued in place. My wife will be picking out the wallpaper and flooring so I have to wait to see what she wants. I bought a Cir-Kit tape lighting kit and plan to install the lighting as i go along as well.