When Wife had her yard sale last week, we made a neat discovery at the local WalMart - all sorts of fancy yard sale signs and posts to put them on. Before this, we’ve always made homemade signs on a piece of cardboard and nailed them onto a telephone pole. This time, we bought a few fancy yard sale signs and the stakes for them (which had a sticky area to attach to the sign) and a few yard markers to let the shoppers know exactly where the sale was…