I think a good idea for your wage that just sits there adding up during your time on the game would be to be able to give money back to your local community, start up grants for new teams, new pitches/kits/training gear for lower league teams thus building good relationships with other teams and managers. Affiliated clubs probably covers some of this but if you don't want to be necessarily affiliated or if club is low on money you could us your own. Maybe go as far as nationally and be able to provide money to other teams throughout the country.
Also with the introduction of the new coaching courses, maybes again if club is low on money you could pay for your coaches courses thus building stronger bonds with your staff
Also with the introduction of the new coaching courses, maybes again if club is low on money you could pay for your coaches courses thus building stronger bonds with your staff