Maine,
Lube -wise, Col Peter Hawker wrote that, "Locks, like sardines, are best kept in a little oil".
Bit of grease on working surfaces is what I use.
Gin is useful for cleaning locks, takes off gummy oil nicely and has been used for centuries, and it does give you a good reason to buy a bottle.
A quart of gin for cleaning locks should last a whole week....
:-)