So today I noticed that the sliding door in my apartment living room had been tampered with. The screen door was open and the lock on the sliding glass door was open. Luckily I had a dead bolt on the door hidden from view. I checked out my my other windows and noticed that one had the screen dislodged. I was wondering if anyone had any suggestions for a security system for my apartment. I don't want anything hardwired or too expensive since I'll only be here for a year. Just something to scare off intruders/warn me. I've got two sliding windows, a sliding door and a front door as points of entry. And of course a ton of electronics and video games.