Mix the salt and sugar.
Cover the bottom of a dish long enough to lay out the salmon, with half the sugar/salt mixture.
Chop all the fresh herbs I had in the food processor (mostly tarragon, some basil, dill, thyme, and parsley).
Spread half the herbs on the salt/sugar mix in the dish.
Lay the filets, skin side down on the salt/sugar mix.
Cover the top of the filets with the herb mix and salt/sugar mix.
Place another dish on top, weighing it down (with cans or jars)
Leave in the fridge for 12 hours,
After 12 hours, take off the weighted dish,
Scrape away the salt/sugar/herb mix to one side and drain off some off the liquid
Turn over the filets (you will notice they are stiff now) and cover the exposed side with the reserved herb/sugar/salt mix.
Replace the weighted dish and leave for another 12 hours.
After a 24 hour cure (although I left mine for 48 hours so I guess it doesn't matter if you do it a bit longer), remove the filets and wash off the mixture.
Pat dry with a non fluffy tea towel.