...Wyze Cams. $20 each before shipping, you get free 12 seconds of cloud storage...
I might clarify that further. When the Wyze cam detects motion, it records a 12 second burst of video, which is stored in the cloud. Then it "goes to sleep" for five minutes, before motion will again trigger a 12 second burst of video. These 12 second bursts are stored for two weeks, at which time the oldest recording is overwritten by a new one.
When the Wyze cam has "gone to sleep", you can still view live images, it's just that video is not saved to the cloud. If you have a microSD card inserted into the Wyze cam, it can record video continuously to that if you want (no 12 second limit once per five minutes). You can also have it record time lapse to the microSD card (e.g., take a still image snapshop every XXX time period). I have not played with this time lapse mode, so I do not know if there are any limits on what you can set XXX to, or if you can even set it yourself (it may just use a default non-user-settable time period for all I know). Also, you can have sensors trigger your Wyze cam to record - say a door is opened. This triggering will record a 12 second video just like before, however, it is not subject to the five minute sleep mode, and it will record 12 second clips of video as often as it is triggered.
For what these Wyze cams cost, and their easy availability at Home Depot, they are the best video camera bargain on the market. Nothing else even is in the same ballpark when it comes to low cost.
I have a couple of Wyze cameras. I also have some door sensors and a motion sensor. All of these have been extremely reliable for me. And the Wyze app you install on your smartphone to view and control these things is actually quite good. I have no complaints for a free app. Most things are fairly logically laid out, and it doesn't take long at all to learn how to use the app like a pro.
p.s. - My wife just bought one of those Ring video doorbells at Costco. I will try to get that installed this weekend. Hopefully I will remember to write up a review comparing/contrasting the Ring to the Wyze. The Ring is a heckuva lot more expensive, plus you have to pay a yearly fee to store video (first year is free - included with purchase).