Please don't check in package options "Add package unit to uses section."
Becasue in most cases resources and property editors are added in package register unit, this makes the applications exe without necessity bigger.
After remove this units from project unit (.lpr-file) my application was ~1MB smaller:
laz_fpspreadsheet
zcomponent
lazreportpdfexport,
datetimectrls.
Look at picture to find the option: