Is there such thing as a removable car film/cover that can be removed and washed (rather than a car wash)?
I don't believe it does. Convection currents usually maintain their positions. I think
There's no such thing as a master lock that unlocks every lock. Master locks are made to open a series of locks. So u could buy 25 locks or however many and have one key to unlock them all. If you were to go buy the same brand of lock somewhere else, the master key from the set of 25 shouldn't open the new lock, unless u specifically ask for it to. Lock in sets like that are usually expensive, hard to replace and not used often in apartments. In a lot of apartments the locks are changed anytime someone new moves in to an apartment. Landlords usually just keep a copy of the key to the lock that's on there, for emergency purposes. If your mom's landlord does have sets with master keys, u will probably be required to change the locks back when u move out. If not the keys to the new lock might be required. Since you have changed the locks and did not notified the landlord or given him a spare key, your mom will have to pay for any damage caused in an attempt to gain entrance without a key. A locksmith can usually open most locks but they have special tools, not master keys, and they can't always open locks without damage.
