Selling
STAMPS
Stamps, like so many other collectibles, are filled with variables. Condition plays a big part in determining value, as do age and rarity. The casual collector who simply saves what looks pretty or interesting, ripping off the corner of an envelope to save that delicate flower, historical figure, or stellar landscape, will wind up with boxes worth very little.
The same goes for stamp albums for children or beginners that are sparsely filled — and any U.S. postal stamps from the past 70 years, which is what most people have.