And here we are, pretty much at the end. You may just about be done, you may have lost track and have to do some (or all) of the SBS Project all over again. If you need to go back, do so. There's no shame in it. Life happens and no space can be perfect all the time. Or some of the time. Or at all. Right now I'm sitting in my living room and wouldn't even be able to walk a straight line through it due to all the Legos, books, and toys scattered on the floor. And you know what? It will still be there in 10 minutes when I'm done with my tea. And guess what else? I will be going back and doing half of the SBS Project again immediately and I'm not ashamed to say so.
As we wind down the SBS Project, I feel the need to note, rather emphatically, that we're going for a sexy sanctuary in the bedroom. Don't get too tied up in making everything perfect, because it will never get there. Perfection is unattainable in this life. What you are going for is a place that you and your spouse want to be in. A place that is (mostly) clutter free, comfortable, sexy, warm and inviting. Don't get too discouraged if your place doesn't look like a magazine. Most real houses don't look like that.
So, let's say you now have a completely clean, clutter free space of marital bliss. Now what? Celebrate! Put the kids to bed and have yourselves an amazing night. Buy some new lingerie (if you like and can afford it), light some candles, put on some music, and just be together in your new space. Shut everything out for a little while and just be together in the space that is set aside for you both.
Make bed/do laundry/tidy the floor.
Do a quick dust and vacuum/mop, if necessary.