When folding towels, try to remember to tug the corners (all four) to keep them from...well shrinking. Such a simple thing that honestly will keep your towels looking better longer. Also, folded towels just make a room, like the bathroom seem a bit more tidy.
Each day, take a moment and fluff all your pillows and cushions! Not only will it shake the dust off seldom sat on furniture -- but it does make the room look a little brighter.
Make your bed (encourage the kids to also). Silly as it sounds even a kinda messy room will look a little better when the bed's made.
Clean your (all) sinks and swish the toilets. Especially during the winter months when everyone is sharing germs.
Wipe down appliances. The stove, fridge, dishwasher, coffee maker microwave -- basically if it lives on a countertop or if it takes up a lot of eye-space. Give it a little wipe-down.
Sweep or dust your floors. Again this can't be said enough a messy floor just attracts more mess. Not sure why it is. But it does.
Set your table before bed! If your home is like ours the kitchen table is a major artery. Kids play, do homework, random things just get dumped and its a hot spot straight from Dante's Inferno. Setting the table before bed, culls the need to drop things on the table. Breakfast bowls or plates, silver and glassware...and it's one less thing to do during a busy morning!
Lay out your clothes for the next day! Do we need to explain this one? Gather your purse, iPod, charge your phone -- where are your keys?
What's for dinner?