What about a spot of crochet? I have loved the NDS crochet along flowers thing - it is not too late to join and sock yarn is perfect. Just a thought anyway - the crochet shawl items on the NDS web site are lovely to do as well and you can do a motif or too and then go off and do something else if you want to. Make a change from knitting!
How about a challenge? For instance you could knit yourself a cardigan or a jumper in 4ply - it would take ages but just think of the detail you could include.
Fair Isle! That's the answer! Love Vanessa xxx