Drip tip is my fave but I like the little Nanos for trying new flavors or for a juice that I like but only enjoy for a short while at a time. It's bottom coil, no wick, only holds about 1 ml and so easy to clean, just rinse it out and put in another juice. It hits a little warm because it's so small but I like a cool vape so a little warm to me is probably not too warm for most. Cost usually $3 to $4 but I'm still using the same ones 4 months later.
Got a bunch of EVODs on the way. I finally tried one and so glad I did. They are also bottom coil, cool vape and easy to clean.
You can clean some cartos if the juice isn't too strong. Soak them in everclear/vodka and then rinse really well with distilled water (some use tap water). I've also heard that some people boil them but I haven't done that yet. Just remember to let them dry completely.
Good tip for keeping up with your flavors...small matching rubber bands around the tank and bottle.