As I cannot read that many kanji characters, I still buy a lot of things by purely guessing. Alway short on time, I often just cannot bear it to take out my phone, scan a product all over with Google Translate (things are usually covered with information on all sides) and then take the time to make sense of a, usually, wonky translation. There are also products that I buy just because I find the illustrations hilarious, This one here in the picture is a good example.
katazukete 