Reducing costs - utilities, cable, internet

[Bill E.]

I just purchased a 12 unit bldg which has three corporate units. They pay between double and nearly three times market rent which is great - but LL pays for all utilities, furniture, etc.

I'm trying to brainstorm ideas for reducing costs in these units - any thoughts?

I'm considering things like: low flow faucets, energy efficient lighting, etc.

I'd love to find a way to reduce the cable and internet bills as those are the biggest expense in each unit.

Also, they just installed AC window units so any thoughts on keeping that under control as well would be appreciated.