Make you Shabbos as a weekday so you do not depend on beings - עשה שבתך חול ואל תצטרך לבריות
Summary:
The concept of being remunerated for שבת ויו"ט expenses accordingly, is only if one has money, but not if one does not have the money available.
That he leaves over from Kiddush for Havdoloh - דמשייר מקדושא לאבדלתא
Summary:
The Friday night קידוש (only) takes precedence over the שבת day קידוש, however, even הבדלה takes precedence over the שבת day meal (regarding the wine).