there are only 2 ways of doing this.. either by using static or by nat 0.. nat 0 has an access-list applied to it , to specify what traffic not to nat.. both are easy, and depends on individuals.. i always use nat 0...
nat (inside) 0 access-list nonat
access-list nonat permit ip host 192.168.1.10 host 10.1.1.1
you can do this for any interface... hope this helps..
all the best..
Raj