Color wise for the sand and mud flats tan shades and pinks work well - size 4s & 6s should be fine. For drop offs and deeper channels clousers & deceiver styles in various olive / brown / yellow / white combos seem to work well up to 4 or five inches.
Flashy ties can be useful occaisionally but I rarely found need for them. Even barracuda seem to prefer a more natural pattern most of the time. If you're trolling something behind a boat that might be different.
When sight fishing, look over your shoulder from time to time, you never know who's behind you