I just bought a munch of Mayday sleeves and there seems to be what looks like condensation on the inside of the sleeves. This makes it very difficult to open the sleeves to put the cards in, making the sleeving process taking ages. I often have to blow into them to get them opened up. Are they usually this difficult to use or is there something wrong with my sleeves? Or am I just doing it wrong?
Put the sleeves in the sun for a few hours and that will get the condensation out. It will also warm the sleeves up so it will be easier to put the cards in.