Wow - sometimes I think 'analogs' were much easier in this regard. (ducking)
3 - Mods (two replaceable battery, one 'passthrough' stick)
3 - tanks (1-5ml, 2-1.5ml)
3 - flavors (prefer ~30ml tank for all three)
2 - Extra coils for each tank style
1 - battery charger
1 - charge cord (for pass through stick)
1 - extra rechargeable battery
It all fits in a 'fanny pack'.