PayPal sponsorship: 5€ free

Not many people know this but there is a sponsorship program at PayPal. It’s very simple:

click on my referral link here
enter your email address to register and follow the instructions
as soon as you pay something for more than 10€ within 2 weeks after your registration, you will earn your 5€ bonus

PayPal is a secure payment system. You don’t have to enter your credit card number everywhere
PayPal allows you to send money between friends and family at no cost
If you are shopping with PayPal and wish to make a return, the return shipping costs will be covered by PayPal. I’ve talked about it here and here
If you make purchases with PayPal but the merchant does not send you your products, you can easily create a dispute and obtain a refund