Tough to list JUST 5.
1 - Don't spend a lot of money on cars in your youth (go very old in the $1k-$5k range).
2 - Pay cash for everything - no debt. No auto loan, I would be wary of school loans too.
3 - Save all/most of your raises & never spend a second income (along the same lines)
4 - Don't buy more house than you can truly/comfortably afford
5 - Set an allowance for buying stuff you don't need. Limit it to a small amount annually (your luxuries).
I always say I go for the big stuff - I find it far easier to cut the fat on the big stuff like this - makes life much easier.