The snare drum
Level 1: Even if you're being lazy, you should have gotten into the habit of always turning the snare off when it is not in use. The springs in the snare drum are tense when the snare is on, and constantly leaving it on can shorten the drum's life span. After turning the snare off, take the drum out of its stand and place it where nothing can slide and puncture it during transport.
Level 2: Do the same as level one, except put the snare in a custom sized case to protect it for the trip to the gig. Fully retract and fold up the snare stand to save room. Be sure the hard metal stand can't move and damage other pieces during transport.
Level 3: Unlike most drums that have easily removed and replaced heads, snare drums should be replaced once the skin is shot--since removing the head is not always possible. The springs in the snare tend to go before the head, anyway. Use a drum key to loosen the snare's head and leave it on the drum during storage. Make sure the snare is off and protect the head from any contact using any packing material you see fit. Wrap the folded snare stand in bubble-wrap.
The Hi Hat and other cymbals
Level 1: Take the cymbals off of the hi hat stand since they can slide on and off easily. Fold up the cymbal stands the best you can and lay them down parallel to each other. You could leave some cymbals on the stands if you have the room and don't mind them clanging everywhere during transport. This saves you time but could
damage the cymbals.
Level 2: Take all cymbals off of all cymbal stands and put them in padded cases. Fully retract and fold up all cymbal stands, making sure to keep track of which cymbal goes with which stand. Secure everything for the moving process using cases or other containers.
Level 3: Same as level two, but with any additional packing material that you deem necessary to keep your cymbals and their stands cushioned and secure during a long move.
The floor tom
Level 1: Put it upside down with the legs up in your van.
Level 2: Remove the legs and keep them together. Try not to confuse them with the base drum's legs. Put the tom securely in your transport vehicle, making sure that nothing can strike its head.
Level 3: Do level two but also remove the head from the tom and fill the tom with a blanket or other packing material. Secure it in the transport vehicle, hopefully in a case, to avoid scratches.
The stands, stools, pedals and other small items
Level 1: Throw everything together in a small container. You can sort through them when you get to the gig.
Level 2: Label each small part so you know where it belongs in the bigger kit. Keep like items together in separate containers.
Level 3: Label and wrap up small metal pieces that could damage other items during the move. Label and wrap up any drum heads you have removed, as well.
If you went level two or three with your drum packing thoroughness, you surely avoided any mishaps. Soon enough you'll be ready to rock in a new location!