If you are having trouble getting bubbles out of your protector, try waiting one day. Most bubbles will work themselves out in 24 to 48 hours. Larger devices, such as tablets and MacBooks, can take longer to cure and for bubbles to resolve themselves.
For the glass products, you can start from the centre of the protector and push the bubbles to the edge, or you can wait a few hours and they will work themselves out. If they are not gone completely within 24 hours you may have a dust spec underneath the glass and will need to use the dust removal strips.