Good luck ~P and to those in New Orleans or in the storms path. You mentioned about the laptop charging thing. You might want to get some lithium ion rechargeable power bricks/block.
Like these: Amazon Link to USB Charging Block

These are great for power outages.

I have 3 or 4 different types of these charging bricks/blocks that I use all the time just b/c I like to keep my devices around the house charged but if I'm not near a plug I'll have one of my battery blocks and can charge my device.
You don't have to spend $50 or $75 as in the link I displayed. You can get them for $5-$10 at Walgreens and Walmart. However, those won't have as many mAh (milliamp hours).
The one from the link above that's rated up to 20,000+mAh will recharge a full size iPad or Samsung tablet at least 3-4 times. A phone probably 5-6 times. Look at the chart on the link above (they provide a guide down lower on the page). The 26,000+mAh version can recharge a full size iPhone XR or tablet about 6.1 times from no charge at all.

If you had the equivalent of 2 or 3 of those already charged up (make sure they are charged - many of them come charged) you could recharge a full size Galaxy S10 or iPhone XR or equivalent tablet nearly 20 times over between the power blocks. That's all the way from dead zero to a full charge. The charge block will last for a LONG time too when not in use. I've had a 15,000mAh power block sitting at 100% and it hasn't lost a single bit of charge in 3 months. It would take a year just to lose 5-10% charge if you have a good quality one (the super cheapo $5-$10 ones at Walmart/Walgreens checkout stands are not going to be quite that great though I'll be honest).