Magazine holders are good for keeping old issues in order, but their handleless backs make it difficult to access them when you need to. For a permanent fix, position a sash lift on the back of a holder, and mark screw holes with a pen. With a hand drill, make two holes in holder to accommodate small bolts. Secure the lift to the holder with bolts and matching nuts.
Sources
Brass-hook sash lifts in polished nickel; $11 for 2; Rejuvenation; 888-401-1900 or rejuvenation.com.