Weezie, we've been using row cover now for about 5 years and I love it especially for those touchy crops that can barely handle a bit of frost.
I'd have no cucs or beans if I didn't use row cover.
I usually anchor it down with soil on the sides. If I have more rows then there is room underneath one set of cloth, then my husband just took some old pipes rolled them in the cloth ends a bit and laid it between the rows.
grow just as well under this cloth, but the good out weighs the extra work.