Relevant that he keeps them in a bureau drawer?
No. I just like the words 'bureau drawer'. http://tvtropes.org/pmwiki/pmwiki.php/Main/TitleDropWould the puzzle work if he kept them in a shoebox under his bed?
yesa good friend - H/A/
yes M?
irrel; probably the more likely option H/A/F?
Relevant how many postcards there are?
no If so, less than 10? 10
assume a dozen or so -50? 51-100? more than that?
Relevant how old the postcards are?
yes Does the friend still send postcards?
no If not, relevant why s/he stopped?
yesRelevant what's on the picture side of the postcards?
no Relevant what else is written on the postcards?
noRelevant where the postcards were sent from?
no If so, were they all sent from the same place?
assume noRelevant how far apart the postcards were sent?
no If so, all at the same time? less than a week apart? Less than a month? less than a year?
assume this more than that? Were the postcards sent at regular intervals?
yes, more or less Were they sent for a special occasion?
no If so, Dave's birthday? Christmas? The anniversary of an event?
n/a to all