>>2213194>double up sleeping padsSleeping pad is more important than you think for the cold
>leave water filter at homeif it drops below freezing, your filter will be permanently damaged. If it's cold enough for snow on the ground, then you should be melting snow.
If it's fall temperatures that hover around freezing at night, you should keep your filter in your pocket to keep it warm so it doesn't freeze.
>zippo hand warmers are very useful for adding exra +10 degrees to your sleeping bagYou can also use the hot water bottle trick, but that's potentially dangerous if you're solo backpacking and you spill a leak in your sleeping bag.
>Learn to use deadman anchorsRegular tent stakes won't work in the snow
That's the "non-obvious" things i can think of for now
