I have a tiny house camper - no bathroom in it (although it does have a sink!) - just a bed and some creature comforts. I typically camp with it where there isn't electricity so I have a small solar panel for things like cell phones or to recharge batteries in a flash light. I've also tent camped before but I prefer the trailer only because the light doesn't wake me up as early as in a tent. ;-) That and rain storms aren't nearly as obnoxious.
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https://apix-drive.com/en/verticalresponse
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https://apix-drive.com/en/verticalresponse