Replace coils every 1-3 weeks to maintain performance and taste.
Clean your connector pins and threads with a q-tip. Keep airflow-holes cleared with a pin.
Keep your vapes in upright position when not in use.
Turn off your batts so they don't activate in your pocket or purse.
Don't activate your device with an empty tank and don't flood your tank with too much juice.
When attaching/detaching battery, hold tank at base and rotate battery. Tighten connections gently until snug, do not over-tighten connections with excessive force.
Don't "hot-box" your vapes through constant use and excessive sharing.
Always follow instructions and do not attempt to modify or tamper with your vapes. If you want to build coils and work with unregulated mechanical mods, make sure you educate yourself about volts, watts, ohms, etc.
Keep your e-juice bottles away from children. Don't drink it.
Do not charge your vape battery with devices from other electronic products.
Use care while vaping and driving - pull over if you must refill your juice or monkey around with your vape.
Be considerate of others - thankfully, vape clouds are nothing like cigarette smoke and often have no fragrance whatsoever. Nevertheless, many people are still completely unfamiliar with vaping and may freak out if you start rocking huge clouds in a public place. Be aware of protective parents and their small children if you want to avoid drama.
Electronic cigarettes are now more popular than drugs, gum or patches for smokers trying to quit. - Time Magazine, August 2014.