If anyone uses the single headlights algorithm R2 D' R U2 R' D R U2 R, how did you memorize it? I having trouble doing so.
It was easy for me to memorize that for COLL because I had already memorized its mirror, R2 D R' U2 R D' R' U2 R'.
If I were to memorize it form scratch, though, I would think of it as (R2 D' R) (U2 R' D R) (U2 R). The first segment is super easy to memorize- it's just three moves, turning only two faces, and as long as you're using conventional fingertricks, you'll be using only your right hand.
The next two parts, explained simply, move an F2L pair out of the way, change the bottom layer, and put the F2L pair back in. After performing R2 D' R, look at what U2 does. It takes the F2L pair elsewhere. Doing R' D R doesn't affect that F2L pair, but does fix the bottom layer, so that U2 R will put it back in, solve the F2L, and finish the alg. If you have trouble remembering which way the second D turn goes, just remember that it's the opposite way that the first one went (and the direction of the first one is easy to remember because it's D', which you use your right hand for in one motion with the R2), because it's "fixing" the damage that the first one did.
Maybe that didn't help, but hopefully it did.
Edit: Epically triple ninja'd