80th b-day from 2016 = 1936
The last day of that month… 2016 was a leap year, so for Feb. it’d be 29th
So, 3629
Used on the safe pin pad we find a
inside.
That’s used on the bed to remove the safety railing… and gives us a 
The 
“TB” is used
on the tool box which gives us a
Using the makeshift we climb up to the shelf to get the 
bust
Bring it back down, smash it with a hammer to find the final key that opens the door.
So… with things being unlocked I guess that means a mod can “lock” this topic. 
Thanks to @Lindolfo and @thefixer47 for playing. Floople too for asking about the comb’ination lock. If they wanted to throw something the hammer could’ve done what the purse didn’t.