I was gonna buy an everburning torch since I have the money, but I decided that a lamp and oil might be more authenticish. I have a few things to ask though. Why do you have 2 sq. yds of canvas and a mirror? Is an ounce of ink all you'd need for 10 sheets of parchment? Would you have bought a climbers kit if you could afford to(you seem to have a bunch of other climbing supplies)? Why do you have a glowing sword(which lights up 20 feet), sun rods(which light up 30 feet), and candles? I can understand the first two, so that you can see well at either of those ranges, but candles are like 5 feet of dim light right?
A mirror is potentially quite useful. In addition to the obvious mythological use, you can utilize them to look around corners and for signalling at a distance.
2 Sq. Yds of Canvas? I'm sure I'll think of something.
1oz. ink is almost certainly sufficient for 10 pieces of parchment. Probably more than that. There aren't exactly rules for this stuff though.
I forgot there was a climber's kit, honestly. A hammer, pitons, rope, and a grappling hook basically are a climbing kit.
Regarding light sources:
Sunrods are strike and then they stay lit no matter what you do with them. So you can throw them, drop them down a shaft, drop them on the ground and move elsewhere, etc... Totally different use than a lightsource to hold.
Candles are good for non-combat non-adventuring uses like writing or whatnot. Using a candle also produces molten wax, which can be used to seal things like letters (special sealing wax will hold a seal impression well, but even regular wax will hold parchment closed).
Having my sword glow means I have a light source i can use in combat without tying up a hand.
Since I don't understand how some stuff can be used, why do you even want an 11 foot pole? I was gonna ask how you managed to fit it onto a mule, but the mule's about 10 feet long, so you could probably strap it to it's back without affecting mobility too much.
Because 10' pits are common. =)
Just in general, a pole is a versatile piece of equipment that can be used for a variety of purposes, like tripping traps and extending your reach.
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Thinking about things, I need to find entries for some additional useful items. Like thread and iron nails. Hmm... probably want some salt too. Wow, I really don't have enough room for mundane equipment...