You could contact your local authority and see if they have any advice. I am in the Dublin City Council area, and every year, once a year, they do a free 'bulky items' collection. Or your local recycling/bring centre may have a furniture facility (not necessarily free), and while you'd probably need to borrow a trailer or van to get the stuff there, it'd probably be cheaper than a skip - and you'd be confident it wasn't going to be illegaly dumped in some remote field.