How many tries does it take for us to unclog our bathroom sink?

Our bathroom sink has been a "slow drain" for a long time and has gotten worse... so what we thought was an easy task, ended up being an extravaganza.

Try 1: Put Draino down the drain for 1 hour.
outcome: still a clogged drain

Try 2: Pour boiling water down the drain
outcome: still a clogged drain

Try 3: Baking soda and vinegar down the drain- followed by boiling water (this was really fun to do!!! Like a volcano in your own house. I highly suggest trying this next time you are bored)
outcome: still a clogged drain

Try 4: Trip to the hardware store. The guy who helped us said to buy this 3 dollar gadget called a "zip it"
outcome: still a clogged drain

Try 5: Unscrew the pipe behind the wall, and let the crap fall into a bucket
outcome: STILL a clogged drain (at this point we realize the clog is all the way in the wall somewhere)

Try 6: Back to the hardware store to buy an auger
outcome: A DRAIN THAT DRAINS!!!!

Toodles!