Every so often you need to revive a can of paint or stain. You can shake or jostle it for a while and still have a certain level of separation. If you're lucky your local store will put you old can in the shaker,but it not you need a stick stick. If you don't have one around and don't have any scrap sticks to use here is a quick way to make a darn good stick for usually zero cost using a wire coat hanger.
Step 1: Start Forming the Hanger
Make a 'V' with the hanger by folding the bottom crosspiece up to the hook.
Step 2: A Couple Twists
Give each leg a couple twist. I use a pair of pliers to get a nice tight twist, though you can do it be hand as well.
Step 3: Stir It Up!
Stir your paint, stain, whatever using a whisking motion. Dig down to the bottom the get the solids well mixed in. Before you open the can, turn it upside-down and give it a quick shake. If you can let it sit upside-down overnight it will blend easier, but even a few minutes will make a difference.