Things+that+make+you+go+hmmm

There are so many things about the environment that make us go hmmmm

Milk bags

The counter idea - refillable milk bottles (or jugs or cartons)

Receipts - do we really need them

The counter argument - library gives you the option of whether you want a receipt emailed or no receipt at all, gas stations are often giving the option of whether you want a receipt

Invitations to party - with email, do we really need the card, envelope etc