harvesting

At harvest-time all you have to do is cut the plant as low as possible and hang the whole thing upside down to dry on a line. The room you use to dry should be the about the same size you grew in (if not the same room). The humidity should remain a constant 50-60%. Too high and buds will mold, too low and they dry too fast and taste bad. Temperature should be around 65-68 degrees, wherever possible. Make sure the room is dark, as light degrades THC. Make sure you hang the plants so that they do not touch each other (invites mold). With constant temp and humidity, the plants should be ready for manicuring in 3-4 weeks. At this time trim colas from the main stalk, and trim large and medium fan leaves (save them for making hash), leaving most of the smaller leaves sticking out of the bud in tact. Hang them up again and for a day or two, until 'popcorn' dry. The stems should snap when you bend them, and the bud should be dry, but not brittle.

then, if you want your weed to be as good as it can be, you can cure it.

Trim all remaining leaf (save for hashmaking) tight to the buds, and trim smaller buds from larger stems. Store them airtight; air at this point degrades THC. Note- ziplock bags are not airtight! You could use buckets with an airtight lid like used for food and sauces and such, but the best containers are those glass jars with the rubber seal and latch. Just put as much bud in it as possible using light pressure. The point is to fill it as much as possible, so not too much air remains in the container. The less air, the better. To be safe, check them the next day to make sure it's still dry (did not 'sweat'). Any excess moisture at this point will invite mold. If it did sweat and is moist (soft) again, lay the bud out on something other than newspaper and put in a dry place to get the last water out.

Repack and place the container in a cool, dark place, like a refrigerator. Note- fridges have high humidity so they must be absolutely airtight.
The longer it sits (up to around a month, maybe longer in the fridge) the better it gets, both in taste and potency. At around the month mark, you can move it to the freezer to almost stop the aging and curing process. Once you've got some buds stored in the freezer, you have a private stash that will last a long time. If you've got the patience to wait, the smoke will be sweet and smooth. The high will be mellow, and longer lasting. If you grew enough to last you a while, then after a few harvests you will be able to have properly cured buds at your disposal, with no downtime waiting for the next batch to cure!