Immigration & Checkpoints Authority

I hate to just echo Marcus’ review, but it’s true.
Make an appointment online. Get your stuff in order. Mail it in.
I arrived 5 minutes early for my appointment, collected my queue number, and was out of there in 15 minutes. Considering how people used to talk about the horror stories for collecting of passports or ICs, that’s nothing short of amazing.
So yeah, put in the effort in wrapping up the details online. It’ll make your time there way shorter. I also really like the photo taking company on the… third? Fourth floor? They’re passport sized, do light touch up, and work for every application I’ve ever needed photos for. I troop down every time I’m out of photos, take like 12 of ‘em, and just keep them at home for emergencies.

If you want a four-​star experience, you’ll want to make sure you’re doing WHATEVER you can online… otherwise you’re going to be spending a good part of your day waiting for your magic number to show up.
Make sure you have your picture sorted, and they’ll have a guide to show you what you need. It’s a pretty painless process, and those 10 – 15 minutes online can save you a couple of hours sitting in the waiting room.
I’ve got both my passport and Identity Card renewed this way, and I’ve spent no more than 15 minutes after getting my queue number. Amazing, if you ask me!