Sadly instant isn't often possible. I rarely get enough harnesses made on hand to really make an ebay listing or have on hand stock. For the harnesses it's more of a made by request. Also, something like 95% cell service providers allow text to email, just have to type the email instead of the phone number. In the back end, a text is just an email anyway, I just live in a dead zone for cell service.

For anything else, my ebay store is the best place. A lot of people have ebay accounts. Some day I'll get on Amazon but there's a lot more red tape there for people that make their own products.