There's some good stuff here, but a lot of the psychology is ill-founded. Flow, for example, is probably the most effective form of practice, and play often creates flow. Jamis recommends practicing constantly, but it's extremely well established that spacing your practice out gives you more bang for the buck, more improvement per hour of practice. (This is called "massed practice vs. spaced practice", and it's been known since before the dawn of cognitive psychology.)

(There's some pretty good evidence that you can fill the spaces in between your practice sessions by practicing something else — without losing the benefit of spacing.)

The maze generation algorithms, though, are awesome.

My favorite is still this one by Joe Allen:

    /*  jallen@ic.sunysb.edu  */     /* Amazing */     /* Joe Allen 129.49.12.74 */
    int a[1817];main(z,p,q,r){for(p=80;q+p-80;p-=2*a[p])for(z=9;z--;)q=3&(r=time(0)
    +r*57)/7,q=q?q-1?q-2?1-p%79?-1:0:p%79-77?1:0:p<1659?79:0:p>158?-79:0,q?!a[p+q*2
    ]?a[p+=a[p+=q]=q]=q:0:0;for(;q++-1817;)printf(q%79?"%c":"%c\n"," #"[!a[q-1]]);}