If you don't mind, TT, I'll throw this in for searchers landing here also.
If an egress (usually front entry) door, no key allowed per code in case of fire:
"R311.2 Egress door.
At least one egress door shall be provided for each dwelling
unit. The egress door shall be side-hinged, and shall provide a minimum clear width of 32 inches (813 mm) when measured between the face of the door and the stop, with the door open 90 degrees (1.57 rad). The minimum clear height of the door opening shall not be less than 78 inches (1981 mm) in height measured from the top of the threshold to the bottom of the stop. Other doors shall not be required to comply with these minimum dimensions. Egress doors shall be readily openable from inside the dwelling without the use of a key
or special knowledge or effort." From: http://publicecodes.citation.com/ico...011_par001.htm
Clothes taking longer to dry?
Clean the dryer screen in HOT water if using fabric softener sheets.
They leave a residue that impedes air-flow, costing you money.
Clean the ducting in the last six months? 17,000 dryer fires annually!