How do you lock a door short a Lock??? ok, i have an issue next to privacy at my home. My...

ok, i have an issue next to privacy at my home. My bedroom door is in philosophical need of a lock: but i dont hold one.
Question is: what are some ways to lock my 'door' without using a lock? Is in attendance a good opening to wedge it shut??? anything would be so intensely appreciated..*sigh*
I REALLY need give a hand with this one.
Thankyou So much.
ANTS IN MY CAR! How should I get...
Answers:    OKe if u cant be asked to capture a wedge or set up an glib slide lock, stick a key beneath the door acting like a block.
Worked for me
3 piece hip bath mat set?
From inside, a wedge would hang on to people out. Just place it below the door.