Break that project down into little chunks. Deb Lee over at Unclutterer blog writes: "Instead, start some spring cleaning chores now and consider segmenting
your home into small projects so they are easier to tackle. Doing this
will allow you to reasonably start the process without spending all your
time uncluttering and cleaning. Because the tasks are smaller and more
manageable, you probably won’t need a lot of time to get them done. In
fact, just 15 minutes per day can lead to big results."
She continues about 15-minute microtasks: "You might be scratching your head about where to start. One of the
easiest ways to select your first micro-project is to look around at
your surfaces. Have you noticed that flat surfaces seem to have an open
invitation to put things on them? They may start out uncluttered, but
then they somehow morph into holders of knick knacks, paper piles, and
things that haven’t made it back to their designated storage areas. And,
because surfaces are so visible, when they are clutter-free, they can
make a room look and feel dramatically improved."