Nack contemplates what brand of SODIMM this is, and what brand Staples might sell...
Thought process:
2X89.99=$179.98
$179.98-$40 postcard=$139.98.
Dump/sell two 64MB SODIMMS in laptop now = -(2X$40)=-$80
$140-$80= $60
Double laptop memory. Spend only $60....
OF COURSE, this all depends on it being the same brand, AND on the staples manager not being petty about taking the post card. Same brand=unlikely. Staples manager not being petty=VERY unlikely, but you never know.
Nack