I just sold 2 diapers on spots. I emailed both buyers to let them know that I would be heading to the post office on wednesday or thursday to mail out packages. Is that a reasonable time frame for me to mail them out or do you think that's too long for a buyer to wait (3-4days)? I did let the buyers know that if they need the diapers sooner than I can have someone run to the post office for me on Monday. Give me your honest opinions please.....I'm new at selling things on spots. TIA