The group I volunteer with uses binders to put the brailled pages in. We are using the 19 hole 12 1/2" x 11 sheets which detach to 11 1/2 x 11. Our books usually run up to 110 pages, single sided. Does any one have a suggestion for places we can buy our binders? We have been paying almost $8.00 per binder and now are told the price will go to $14.00. We would buy in quantity but need the names of companies that make the binders. Hope you can help - even if it is off the usual topics. Barb