Excellent video on how to prepare your coins for the fork:
https://www.youtube.com/watch?v=S-raVquA_zQOnly thing I'd change, for extra security, is waiting until after you've move the coins 'out' of the temp wallet and back to the main wallet (post-fork) to extract your keys.
This video is way too complicated. Just need a few steps
Quick version:
1. Before the fork put all your ltc in password protected wallet.dat
2. After the fork send all your ltc to an empty password protected wallet.dat
3. Replace the wallet.dat in the lcc offical client with the old wallet.dat
Profit!
Long Version:
Before the fork:
1. Download ltc official client
2. Password protect your wallet in the ltc client
3. Send all your ltc to the ltc official client
4. backup your wallet.dat file from the ltc offical client to a thumb drive. Call it lccwallet.dat
After the fork:
5. Shut down the ltc official client.
6 Delete your wallet.dat from your computer
7. Restart the ltc official client to make a new empty wallet.dat, password protect it. Different password.
8. Backup this new wallet.dat file from the ltc offical client to a thumb drive. Call it ltcwallet.dat
9. Copy the receive address to a text file. Let's call this <YourLTCReceiveAddress>
9. Shut down ltc official client.
10. Delete wallet.dat from you computer and replace it with lccwallet.dat
11. On your computer rename the lccwallet.dat to wallet.dat
11. Restart the ltc official client to load the renamed lccwallet.dat(This wallet should have all your ltc)
12. Send all you ltc to the receive address you wrote down in Step 9.
14. Shutdown ltc official client
15. delete wallet.dat from your computer
Now all the preparation is down.
16. Download lcc official client
17. Start it up
18. Find where it stores its wallet.dat
19. Shut it down
20. Delete the wallet.dat it created
21. Replace it with lccwallet.dat
22. On your computer rename the lccwallet.dat to wallet.dat
23. Restart you lcc offiical client
24. See all your lcc in the client.
At this point all your ltc is now in the ltcwallet.dat and you lcc in lccwallet.dat