my tips:

Utilize colored loom (rainbow) bands to color code your bottles before labeling. I notate the band(s) colors on my recipe spread to keep track. When mixing +20 recipes at a time, this becomes super helpful.

https://www.amazon.com/gp/product/B00GVGVWAE/ref=ox_sc_sfl_title_2?ie=UTF8&psc=1&smid=AJS7HXJ9MGSD3

...and if you are compulsive enough, get 200 of these cheap vape bands to also color code your RDA/RTAs when testing lots of recipes. I share the extras with vape pals.

http://www.dhgate.com/product/cheapest-vape-band-silicone-for-e-cig-mechanincal/255403120.html

Silicone Corks - get yourself some assorted sizes of widgetco silicone corks. I use these for steeping and saving my screw tops and dispenser caps for final bottling. I use these corks for my flasks and cylinders too for keeping liquids in and dust out. They clean easily with soap and water. Note: although the rubber ones are cheaper, they will leave a rubber smell in/on anything they touch. I have a bunch of the size 000-2 cork stoppers too and use those on my RDA/RTA/Tanks as they keep fruit flies out that are attracted to juice.

http://www.widgetco.com/silicone-rubber-stoppers

field/ammo box - these dry boxes are great and most are lockable to keep kids out (assuming you have them around.) I use one as my steeping box and a small one to house my Nic in the freezer.

https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=plano+field+box&rh=i%3Aaps%2Ck%3Aplano+field+box

Desiccant - a hygroscopic substance used as a drying agent. These are those lil pouches of granules you get with most products. I save those (big and small) and use them in all my storage containers (especially bottle toppers and dropper assemblies.) These will get that last droplet of moisture out of your cleaned supplies. They are quite expensive to buy, so save them when you find em.

http://www.widgetco.com/desiccant-packs

Speaking of cleaning and drying, get a camera lens blower to blast air through recently cleaned bottles, assemblies, RDA/RTA/Tanks, etc. to help the drying process. This is the one I use;

https://www.amazon.com/Giottos-AA1900-Rocket-Blaster-Large/dp/B00017LSPI/ref=sr_1_3?s=electronics&ie=UTF8&qid=1476129140&sr=1-3&keywords=camera+air+blower

Funnels: get em, use em... avoid oil spills!

For bottling (15-120ml boston rounds); https://www.amazon.com/gp/product/B016D82NFC/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

For everything else; https://www.amazon.com/gp/product/B000FKERMW/ref=oh_aui_search_detailpage?ie=UTF8&th=1

I keep all my flavor concentrates (other than bulk 4 oz) in 2 of these gasket sealed (keeps the rainbow of concentrate scents contained) parts organizers. I have them organized by bins in alphabetical order with the caps color coded (using the wife's nail polish) by brand. I like these because they stack and store under the bed and out of view. speaking of scents-tip: keep a rag or nail polish wipes near mixing station and wipe your bottle tips before putting the caps back on!

http://www.homedepot.com/p/Milwaukee-10-Compartment-Deep-Pro-Organizer-Red-225046/205847797

edit: forgot another one;

China Markers!

You can get them in any color, but I find the white ones to be most useful. I will utilize these to put recipe initials on the screw tops so the bottles are easier to differentiate when in my steep box. They can also be used to mark temporarily on bottles for whatever reason.

https://www.amazon.com/Sharpie-Peel-Off-China-Marker-12-Count/dp/B00006IFGG/ref=sr_1_1?ie=UTF8&qid=1476132436&sr=8-1&keywords=white+china+marker

When making multiples of the same juice, whether complex or simple, instead of adding each flavor to each bottle, you might consider making a flavor mix concentrate.

Let's say your recipe calls for (before nic, pg, vg are added):

• 10% flavor 1
• 25% flavor 2
• 25% flavor 3
• 40% flavor 4

You can prep 30ml of concentrate quite easily with 3ml, 7.5ml, 7.5ml, 12ml of each respective flavor, as one example.

Now when making three orders of the same juice for the week, say a 30ml 70/30 6mg, a 60ml maxvg 3ml, and a 120ml 50/50 0mg, you simply whip out your premixed concentrate, and add your nic, vg and pg to spec for each. Say flavoring is 10% of the total mix, that's still 10% for any mix, so it's as simple as adding 3ml, 6ml, and 12ml to those bottles, adding the rest of the mix (and you can premix those as well if the scale is worth it and get it down to a two ingredient "mix" for production).

Not worth it for a bottle here or there, but if you're doing dozens of bottles in a short time of a particular flavor, and can take care to store everything properly so you are minimizing undesired exposure or pre-steeping? Likely pretty worthwhile.

Edit to note that I'm not advocating mixing by volume, even though I chose to use volume examples above. Also, typo.

As for steeping, I use a Dyno label maker, or whatever it's called, to label what each juice is and when I made it. Put the juice on my shelf.

Boom.

Steeping organization taken care of.

How much juice are you making?

I make about 400ml at a time (assuming it's not a special project) and it hardly seems like to so much work I need to organize the workflow.

Perhaps i should back up and ask, are you utilizing the most efficient mixing methods? PG, VG, and nicotine in squeeze bottles, weight scale, organized flavors?

With regards to "airflow", are you steeping with the cap off? That's generally not a good idea. Otherwise I'm not sure what you mean, there should be a pretty good seal even with LDPE bottles.

Edit: By Siracha style cap, do you mean there's a two part cap where the outer sleeve rotates to open and close?