Good planning! I have the Innokin EQ pod and
@Pappy also picked one up for his son. HHV has it on clearance which is where we both bought ours for $17.99. Only the grey ones are still in stock.
Innokin EQ (Grey) - $17.99 : Heather’s Heavenly Vapes, Premium E-Liquids Hand-Crafted in the USA
It couldn't be easier. Charges via USB and the pod cartridges are easy to remove (gentle lift up) and refill (flip over, turn the bottom to expose the hole, turn back & pop it on). Wait 5 mins for the coil to saturate and you're done.
It comes with one pod cartridge. It's refillable and comes empty. I vaped Serendipity in it for several weeks before I had to replace the pod cartridge. Fresh Grindz could go for a lot longer than that. I was satisfied at a slightly higher nicotine level. I normally vape 9 mg, but I had some 15 mg remaining from when I vaped that. You might be fine at your usual level of nic.
I just bought replacement pods here at $3.99 each - the 0.5 ohm EQ Plexus ones:
Innokin EQ Pod Replacement Coil Cartridges