State your intent to stand by adding your name and constituency here. Please don't post anything else so we can use this as a definitive list. If you want to discuss things, use the master thread.
If you do intend to stand, once you've put it here, contact your local returning officer asap and let them know. They will then include you in mailouts of relevant information, invite you to meetings, etc. Be nice to them, they're in charge and no doubt having a stressful time
Then, go and read the official guidance at http://www.electoralcommission.org.uk/i-am-a/candidate-or-agent/uk-parliamentary-general-election-great-britain. It's great, and should explain everything.
(@pandy @Aledcanter1234 can you get the ball rolling please, if you're definitely in?)