Here is a quick summary how I rig those boats. Fine-points of rigging are in the photo-descriptions. In my first year at the club, I thought Lasers were hard to rig, but now I think it's really easy and quickly to be done!
- close the plug and the auto-bailer
- put the two parts of the mast together and put the sail on
- make sure the battens are in the sail and put the mast on the boat
- secure the mast with the tie-down (go once around so the line crosses twice over the rig)
- loop the aft end of the outhaul through the boom and the clue of the sail and tie it to the boom
- bring the fore-end of the outhaul through the pulleys and pull it while plucking the boom onto the mast; secure by cleating the outhaul's handle into it's place
- set up the tie-down at the clue of the sail (as to remind me of not forgetting this, I always leave the piece of line for this tied on the boom when I derig)
- set up the cunningham
- tie the loose end of the sheet to the aft-end of the hiking strap, make an additional eight-knot just behind the main block (some people also tie the sheet to the fore-end of the hiking-strap. when you do this, make sure to leave enough loose between the eightknot and the end-of-sheet, otherwise it's awkward to pull when the sheet's all out. currently I am trying a third variant: not tying the main sheet to anything in the cockpit, but having two eight-knots with a fair distance between them, so I always have something to pull on, even when the sheet's all out.)
- bring the sheet through the block on deck and through the ones at the boom don't bring it down to the transom yet, just tie a figure-of-eight at the end
- now I go change into sailing clothes and on my way back bring the life-jacket, rudder and centre-board
- run the centre-board's tension cord through the little loops created by the mast tie-down and hook or tie them together; install rudder and tiller
- check the plug and the auto-bailer again and put the boat afloat
- put the centre-board and the rudder down
- being at the transom already, pull the main sheet through the block on deck and tie it back to the boom
- hook-on the boom-vang and secure it with the tension string that's already on the boom.
- check all your lines again and sail off