Find hole,scuff tube until it is dull everywhere the patch goes,apply glue AND LET DRY (it will become dull and dry to the touch) apply patch and press it down good...done.I leave the clear backing on,it ain't hurting anything.

If done correctly,you should not be able to remove the patch as soon as it goes on.

The biggest problem I see is people don't let the glue dry long enough.....It won't work well unless the glue is dry.Or they don't scuff it well enough,it won't stick well to an unscuffed tube.No shiny spots.