I have lots and lots of AW IMR batteries...in four sizes. I'm guessing I have at least 60 batteries. Some are pretty old. I have LOTs of battery boxes.

I have four chargers, but end up using the Xtar VP1 90% of the time. I break out the 4-bay Intellicharger if I'm charging everything up for a vacation or something.
I have at least two liters of 100% nic juice stored....and that MyFreedomSmokes sale of 1 liter for $50 is still on until the end of this month (what a deal!!) so I may have another liter by the end of the week. BUT....on the nic juice....I keep myself, my niece, my nephew, and about three other people in juice all the time, so I actually USE a lot of nic juice. I'm not just hoarding it for some dismal future. I use it up. I just like to buy it when it's on sale. I also buy flavoring in 4 oz. bottles usually. I have quite the DIY "lab" going. Everybody has a different favorite juice or two that I make for them. (These are people I love who would have a hard time vaping if we didn't work together.)
I know it's excessive, but I smoked for over 40 years, and I was spending over $300 a MONTH on cigarettes by the time I found e-cigs. I could buy way more vaping gear and supplies than I do and still be ahead of the game compared to smoking. It's my only hobby, and I'm enjoying it to the max.