and being almost out of liquid, I can't really help myself from using some of them before steeping to evaporate the alcohol, and could taste it a bit in the vapor.
getting the e-liquid warm will really speed up the process, some people like to make a batch in a microwaveable cup mix it well and toss in the microwave for 5-20 seconds at a time. stirring it for a while in between heat cycles. it wont take much to get it warm but you want to keep mixing well. you don't want to see boiling or any vapor come off the e-liquid well its being heated. if you have an atomizer you can drip into you can test at the end of each cycle as you go. this can take a while depending on the how much alcohol add into the batch. when you think its done, let it cool all the way back down before you put it in the bottle. PET plastic will degrade and leach toxic chemicals into your e-liquid at or above 140 depress F, so don't get the plastic bottle hot or leave it in a hot car.
i use a different method, same idea i just use hot water and a Pyrex cup to indirectly heat the e-liquid. i have more control of the temperature of the e-liquid this way. and i can mix it the entire time. i also wait for it to cool down before adding nicotine.
using eye protection, oven mitts and rubber gloves is strongly encouraged.
i picked up goggles at home depot designed for fluid protection for under $10.