LJ is having server maintenance tomorrow. There's no reason to believe that this will cause any data loss, but it's a good reminder to back up, if you care about that sort of thing.
I use
LJ Archive for Windows. It backs up posts and comments. There are other programs out there that you can find by Googling, but I've never tried any of them.
Also, LJ Archive has a word count analyzer, which will tell you what words you use the most (less super-common words like 'the' and so on). For me, the top twenty are:
1. actually
2. today
3. start
4. changeling
5. nice
6. someone
7. bread
8. sauce
9. stuff
10. cook
11. food
12. garlic
13. post
14. game
15. oven
16. maybe
17. couple
18. usually
19. problem
20. potatoes
...which is sort of hilariously accurate. Food, fantasy, and equivocation, that's me.