2
"If you are so inclined, you will be able to read this clue."
3
Perspective is everything.
4
Trying a different angle...
(Crujones4433 said Brody may need to have his eyes checked, as he eventually used zoomed-in photos of the clue. But it paid off.) "Under a bench you can see from Grandma's balcony."
12
To Google!
"The deck of cards I gave you."
13
Crujones4433 actually planted this clue weeks in advance.
14
After some careful arranging...
16
...the edges of the cards went from this...
18
(A handy reference line was provided.)
21
A little bit more googling let Brady know that Liriodendron Tulipfera was a tree, and he knew there was a tree dedicated to him in a nearby park.
23
Now for a little digging.
24
Success!
According to the original Reddit thread, the check was for $80, which was just enough to put the lucky birthday boy over the top for the scooter he had been saving up for. Great ending, huh?