I've noticed a lot of stores online and in my area sell 3cc syringes and 22g needles for basic to pro level Kit needs. It can simply be used to spray water on an atty head to clean off VG gunk, fill a carto, or help separate the loops in wiring so you can re-wick or just set a slightly used head to right. I have found that I prefer the Curve tip syringe. They aren't as useful for the Pro level jobs, but they are more comfortable for a moderate user like me. Still get good pressure to spray the VG off, Easier for me to fill a carto with than a hard flat needle, never have to worry about dropping it and it ending up through My shoe and into my foot (Sadly, has happened more than I'd like to admit.) Best part, I just asked for one from a local small vet clinic and they gave it to me. Nothing beats free. The small tip fits into most dropper heads so if a bottle has one you can draw right from it without fear of punching through and putting a hole in your E-juice bottle. The slightly pointed tip is good for getting juice out of a battery female connection without having to make contact with the pin. It has become one of the most used items in my at home, cleaning/refilling kit. What are other supplies that you have and can't live without, but rarely see in others kits?