Rick Rack Scarf Tutorial on Purl Bee at http://www.purlbee.com/the-purl-bee/2011/11/15/whits-knits-rick-rack-scarf.html
When painting, wrap a rubber band around the can over the opening. Then you can dip in the brush and wipe the excess paint off onto the rubber band, rather than the edge of the can.
Tip - The Rubber Band Trick - If you need to remove a nail, criss-cross a couple of rubber bands over the top of the hammer before using the hammer's claw. The rubber bands will protect the surface that you're removing the nail from.