Set A Timer
Hands down, this was the most helpful tip for me. Instead of cleaning until the house is 100% clean, which takes pretty much forever, set a couple timers throughout the day. Some moms swear by just 20 minutes, but I've chosen to give myself 35 minutes broken into two chunks. 

The result? I swear my house looks just as clean as when I try to clean all day. Instead of worrying about every little detail, I instead focus on whatever is bugging me most, and give myself a few extra minutes if we're expecting company. I also don't time myself for kitchen or laundry.

Best of all, my husband and kids are much more willing to help when a timer is involved. Apparently they feel more motivated when there's an end in sight, which I guess I get.