A few follow up questions 1. For warm weather shipping, how do you insulate the ice pack and chocolate inside the box? A link to a specific product would be great. 2. For warm weather shipping, do you think 2-day shipping is good? Would 2-3 day shipping work? 3. For a startup, shipping 10-15 boxes per month, would you advise a shipping service like easypost, stamps.com, shippo? Or just go to the post office (in the US)?
1) Search for Cool Shield on Uline.com. They sell both rolls of insulated bubble wrap and insulated pouches.
2) I generally ship priority mail, which is 2 days to most places in the US. Some locations are 3 days, though. For those, I use extra ice and insulation. I've only had a couple issues with melting over the years. If the recipient is within my region, and the box is small enough, I'll sometimes use First Class parcel service which is significantly cheaper, but still arrives within a day or two if the address is close enough.
3) I haven't found much use for a shipping service, even for significantly more than 15 boxes a month. You can create labels at usps.com for Priority and Priority Express, but not First Class. Also, you can create labels using PayPal using their multi-order shipping tool or on a one-off basis here: www.paypal.com/shipnow PayPal used to offer some good discounts but I think they're the same price as usps.com now. Paypal can generate labels for Priority, Priority Express, and First Class parcel (with a tracking number).