Do you remember the knitted blankets that I did? If not then here's a reminder!!!
That's the same idea I'm using for the 'supposed to be' poncho.
I lay the piece on the floor and then choose the colours for the next row. This seems to work really well so that's going to be my plan from now on. Eight squares in a row is enough to deal with at a time and I can 'just about' do a row every two days. Each square takes me an hour and a half and if I get two done in the afternoon (doesn't always happen!) and two in the evening then I can make steady progress.