Candles
Paracord
Rolls of duct tape
It's a biggish plastic square bin (about 80l volume) with lid, being filled with all manner of useful materials for DIY, home, emergency use.
Already got batteries, AM/FM/SW radio, Torches, battery charger, with rechargeable batteries. Lighters, WD 40.
The kind of stuff your mum kept under the sink but a lot bigger and a lot more exhaustive contents. I.also keep a
Has a contents list
Adding to it bi-weekly
Next week I'm half boarding out the garage, as it has a pitched roof and there's useful storage room up there, I'll put a loft ladder in for ease of access.