As an amateur astronomer, you'll periodically hear people talk about how inaccurate your typical laser collimator, as I've done in this post. The truth is, the typical laser collimator that ships with your telescope is likely off by quite a bit, and any collimation you do with it will only end in a poorly collimated telescope. This is fixable, however, and can be quite simple to fix. Below, I'll show you the easy way to do this without any fancy equipment.
When you do this, be very careful not to look into the laser beam. Always be mindful of where the laser beam is so you can avoid it.
Now you can actually use your laser collimator to collimate your telescope! Keep in mind, however, that laser collimators can only be used to collimate the secondary mirror. The return beam is not guaranteed to be 100% accurate so still can't rely on the laser to collimate the primary mirror. For this, you still need to use a cheshire/sight-tube combo, but the laser can now make your collimation process much quicker!