Securing a House During Renovation - Tips?

[Will F.]

Hi I am in the middle of a flip/rehab and wanted some advice for keeping things secure.  I've had tools and several renovations broken into when vacant. Here are a few ideas:

-Put up motion sensor lighting

-Video or Alarms -real or fake? I've seen fake alarm systems which basically are stickers, SIGNS "(This Property is Under Video Surveillance" etc), and even flashing red lights that are battery powered

-battery powered alarms - they have these at harbor freight, you can put on windows and doors- they're powered by magnets --Does anyone have recommendations for better battery powered or simple DIY alarm systems?

-Insurance

-Using trusted 

-Real Video monitoring system --I was thinking of doing this also to see when contractors go in and out of houses.  Are there any that are relatively cheap and easy to set up that you can control with a iphone/ smartphone?

-Talking to neighbors to keep an eye out (This is assuming they are trustworthy)

Anyone else have tips or brands they recommend?