The first thing to know is what exactly a laminate countertop is, this may help you when it comes to actually cleaning the surface. Laminate countertops are plastic that is clung to particleboard or kraft paper to make a strong surface. So when cleaning it, you have to remember it is not like granite which is an actual rock. If you spill something on your laminate countertop you want to do your best to clean it up immediately, to avoid staining.
You should get around to cleaning your countertops every day, maybe right after dinner or right before you go to bed. For laminate, you want to use a mild liquid detergent with warm water and a sponge. You do not want to use an excessive amount of water because if it gets too close to the seam, it could penetrate and cause the laminate to crack.
If you have stains on your countertop, try using a simple mixture of baking soda and warm water. It is going to form somewhat of a paste, and you want to let that sit on the stain for five to ten minutes (letting it absorb into the countertop). When you go to wipe it up, just use a damp microfiber cloth, and DO NOT scrub! This could damage the countertops, and there should be no reason to because the baking soda mixture should lift the stain anyway.
You want to stay far away from products that contain bleach for your laminate countertops, this could discolure them. Also, keep anything hot off laminate countertops, so if you are using your straightner or curling iron in the bathroom, set it on a hot plate, not directly on the surface. Burns are not going to come out of laminate countertops, no matter how much you try so you need to be careful.
Laminate countertops can be a cheaper alternative, that's the benefit. Make sure you do your research before putting in laminate tops and also talk to the fabricator for advice.