When I got "slowed down" a bit on a large project I started a small side build. As an example: I'm plan/scratch building an Astro-Hog as a taildragger and adding some gussets and beefing up the landing gear block area and..... and... Well, I found myself just looking at the build one day and not getting much done. So I looked around the shop and saw a small plan for the old JETCO R.O.G. rubber band powered plane from "way-back". Got out my small balsa building board and started to frame up the JETCO pieces (with AMBROID glue ) right along side the Astro-Hog. Next thing I knew..when something on one build was drying or whatever I'd switch over to the other build and have at it. Now I've got the Hog going again AND am applying the orange tissue to the R.O.G. (my wife thinks the R.O.G. is cute!). I'll have TWO planes finished before I know it. It's a fun way to build and I believe I'll be using this technique again. Gets your mind and eyes off the BIG build just long enough to make it more interesting when you get back to it.