When Oma Desala (aka Mother Nature) tried for a second time to "ascend" Daniel Jackson after death, she brought him to a plane of existence situated between Life, Death, and Ascension. For Daniel's mind to grasp his surroundings, that dimensional plane resembled a waffle house.
In fact, it was the same waffle house Daniel had visited as a child with his grandfather. And this would be the same waffle house where Rube and his team of Reapers gathered to get their daily assignments. So that means that at some point after the deaths of his parents in NYC, Daniel's grandfather Nick Ballard took him to Seattle.
The gathered higher beings must have been amused by the coincidence being so tied into Life and Death....
'Stargate SG1' - "Threads"
'Dead Like Me' - entire series
[Thanks to the Westphallians for the tip!]