Next time you are out running errands, take $10 and spend it on something for your writing. It can be a cute little notebook, colorful paperclips, unusual post-it-notes, colored index cards, a big piece of foam core board for that collage you keep meaning to do.
To jiggle loose scene ideas: Pick a point in your novel that feels flat. Divide a piece of blank paper in two. On one side, write down everything your character knows right now. On the other side, right everything your character will need to know by the end. These can be either external plot point type things or internal realizations the character will need to come to.