This suggestion that I saw in one of my old beading magazines really
worked for me. I tried it this weekend. I wish I could give credit
where it is due but the magazine is now long gone, apologizes.
Cut holes in a piece of beading felt - I also tacked each end down with
pins just to keep it from even think about slipping! Then fill each
hole with your beads. I even mistakingly hit my beading board a few
times and a dog paw appeared in the middle o
f it at one point, but everything stayed fairly well in place.
The above photos show what my board looked like when the felt was removed; makes it so easy to clean up!
NOTE: Double click on photo for close-up view.