1. Dryer Balls: Throw these felted wool balls into the dryer to separate wet clothes as they tumble, helping them dry faster with less stress on the fabric. Hint: a clean tennis ball works too!
2. Handheld Steamer: When you don't want to drag out the ironing board, a portable steamer is amazing for smaller jobs or delicate fabrics. It heats in 30 seconds if you need to quickly touch up your outfit on the way out the door.
3. Sock Clips: It's a laundry cliché, but so true: sock pairs never emerge without a few missing soldiers. Sock clips prevent losing individuals, but also save time in sorting your socks back into pairs later (my personal nightmare).
4. Salad Spinner: Thou shalt never wring out your delicates! The rough treatment will negate the care you took by hand washing them in the first place. As a final step, give them a spin (just like the spin cycle of your washer) to get them partially dry. This also prevents the stretching that can occur when you hang a sopping wet garment. You may want to pick one up specifically for the laundry room so you don't have to share with your salads.
5. Sweater Drying Rack: It may seem unnecessary — you do have a towel and countertop, after all — but a drying rack really is one of those tools that makes hand washing your sweaters miles easier. The circulating air cuts the drying time in half so you can wear your favorite sweater that much sooner. Hint: store your drying sweater in the tub in case of drips.
(Images: As linked above)