Stained glass can be very sturdy if handled properly!
Good Deed Glass cannot condone the use of suction cups to hang most stained glass pieces. Don't let gravity win! Hang your stained glass from a hook or nail placed into the frame above your window, or loop a piece of string or wire over a curtain rod or other structurally sound item.
To clean your glass, wipe with a soft cloth. For deeper cleaning, a damp, soft cloth is recommended. Distilled water is less likely to leave water spots, so if you have it, use it!
Good Deed Glass pieces are polished before I send them to you, so often, they will just need a little buffing.
Don't hesitate to contact me if you have any questions!