A Protective Credit Card Cover
RFID cards are definitely the best thing out there if you like the convenience! It is easier because you do not have to input your pin every single time. Unfortunately, this is the same reason you can make payments without meaning to.

A Protective Credit Card Cover
How can you prevent such a thing from happening? With some tin foil, of course. What you need to do is to make yourself a pouch with it and keep your card in there. The protective layer will keep it safe when it comes into contact with a scanner or card reader.
Getting the Light Right
If you are an amateur photographer, we are sure you have your fair share of struggles with lighting. Since you are not a professional, you probably do not have access to expensive reflectors and flashes just yet. Does this mean that you have to struggle with underexposure until you save enough money?

Getting The Light Right
There is no need to fear as long as you have aluminum foil with you. You just need to wrap some of it around cardboard to make a cheap light reflector that does the trick. This will let you focus ambient light on your subject.