As mentioned, I keep the anchor and warps in a small cordura bag, clipped to the safety lines in the bow of the SIB.
Tiny fender - for buoying a line, if required
BCD air cylinder - for tube top-ups
10m x 14mm rope - for general purpose tying off
15m x 8mm rope - for general close to shore anchoring
75m x 6mm rope (cord?) - for when the sh1t hits the fan
Cordura "sports" bag with reinforced base
2.5kg Bruce anchor with 4m x 6mm chain
Assorted bungees and "small stuff" (one made up as a killcord extension)
Bailer, sponge and cloth
Flat tipped dive knife - has shackle slot, saw and plain edges, line cutter.
OCD - at least when "they come for me", I'll be packed