S4 and everything more

Jus got the s4 rooted it and flashed freegs4 within the first day of purchase. Wanted to know what else I could do with it or if there are any better roms to flash. Maybe some exploits with the ir remote or something

I am very much into CyanogenMod 10.1 (10.2 is in very early stages and I do not recommend for a daily driver).  I put it on my roommates S3 last year and hes been loving it ever since.  I've been running it on every device I've owned since 2010.  ParanoidAndroid is another good one.