With paypal

Caculate the total ammount of your order (don't forget to add the delivery costs: see below)
Go to paypal.com.
Log in to your account (or create one if it's not already done).
Click on "send money".
Proceed to the payment to pobox@pobox-band.com.
Give a detail of your order as well as a delivery adress.
You should receive your package within a week.

Delivery costs - add the following ammounts for every item ordered :
Europe - Cd: 2€ / Shirt: 2€ /
Button: 0.5€
UK - Cd: 1.5£ / Shirt: 1.5£ /  Button: 0.3£
World - Cd: 3$ / Shirt: 3$  /  Button: 0.8$