I'm starting to find it very very helpful even for older personal projects i was working on to try to write out in text form a short plan. I like to even treat this document like it was a peace of scripting code, like say a modeling fix can be considered like a bug fix.
Today i continued working on a project i had started almost a year ago and worked on two times during the last year.
So basically i'm finding it helpful to try to work with older personal projects with a plan, than to just try to begin a whole bunch of unfinished personal projects.
On the side a small ZBrush tip for 3d modeling hair weaves is to use layers for the weave details. I put a general weave detail in one layer, then duplicated the subtool, added more divisions, then added some finer weave details in a different layer. I used the regular standard brush for the larger weave detail. I changed the alpha and varied the intensity (allow bigger or smaller details) to make some of the smaller details.
Hope you find this helpful.
Todd Henry's Accidental Creative book ( www dot accidentalcreative dot com )
Jason Schleifer (jasonschleifer dot com) i learned about the Todd Henry book from reading his blog
Michael Comet (www dot comet-cartoons dot com) i'm inspired by his tools work