Packing your tent
The tent stuff sack isn’t called a "stuff sack" without a reason. So there is no need to fold it into a geometrically perfect package. Take the sack, put in the poles, then the fly and then the tent body. The order is important, because you will need it this way when unpacking and pitching it the next time. In a storm, you won’t want to sort out things first… Always store the tent in a mild, dry environment, as high temperatures tend to damage fabric coatings.
Carry a "first aid kit" for your tent
No matter how careful you are, you may experience damage to your tent while on the trail. It makes sense to care a small and light repair kit with patches for tears and cuts as well as some duc tape for broken poles. The duc tape might come in handy on other occasions, too. An extra guy line and a couple extra and light pegs are not a bad idea either.
Vent your tent at night
Make sure you ventilate your tent while using it. Even in cold nights, the ventilation flaps should be opened to avoid that your breath and sweat turns into moisture that condensates on the inside of your tent.
Keep the tent floor in good condition
For best results, shake out your tent floor every morning. Do not sweep or wipe it, because this gradually destroys the coating. Also, avoid any sharp objects that may cut or tear the tent floor. An extra ground sheet protects the tent floor from damage but also increases the pack weight and size. It is mainly recommended for very thin floors and when camping on very rough underground.