there is a bit of an art to it, i usually keep one corner of the hawk clean and sit the trowel handle on it, blade across hawk, bucket trowel hooked/balanced on side of bucket...nothin worse for me than trowel handles full of plaster, it gets all over the hand then i cant control the trowel proper yuck...
thing is, a board stops you havin to bend down every time, so to combat that what ive started doin, seein as i got a bad back is to sit the bucket on a crate or a hop up...
now im on my knees doin skirtin level upwards, sort of shufflin along, theyre gonna be the next to go then ill need a bloody skateboard!!