Ok, here I go: My neighbor and I both DIY, so we split shipping, WHEN we cant get it free. In Deals and Steals thread you will find a supplier that offers 2 gallons of PG &/or VG at $48 shipped free. Then Good Prophets has TPA sales at $3.99 for 30ml. We get enough to get free shipping, but even so, shipping is only $3 when we buy just a few bottles. Then the supplies: shot glasses for mixing- who DOESNT have these? There are some sold at Wally world for $1 that are graduated. I asked my pharmacist for a 10ml syringe for the kids- free. I reuse my bottles, but even so, they are only about $2.50 for 6 20ml at all the local craft stores. My nic comes from RTS. At 500 ml for 60mg on sale its $43. plus $11 shipping, but we split that. I make my DIY for LESS THAN $1 for 30ml! So, if its about the convenience, go with premade. If its about price, then you HAVE to shop around!
Oh, the cheapest way to get 5/6 ml bottles is to wait til honeyville runs a sale, get as much of everything you can, either vape it or pour it out, reuse the bottle. Personally, I like their mint on menthol and watermelon, so its a good deal for me. And I get DIY bottles out of it. There is also a DIY swap thread. So save up your stuff and post what you have and what you want!