How do you handle the problem that tethered-shooting really sucks off a lot of battery energy?

I actually don't find it sooooo energy sucking like I sometimes read in the forums. I have a sneaking suspicion that the reason for that is that I am using top notch batteries only - and a clear strategy: 

1. Have enough loaded batteries

I have AT LEAST 3 camera batteries with me even though I never need more than 2. If all things fail, then my cameras will run on AA's.

I am using a powerful external battery for my Macbook.

Besides the 28 AA rechargable battereries that I have with me, I also have 8 Duracel AA's in my bag...just in case.

2. Use high quality batteries only

For my cameras I am using original manufactorer batteries only. I tried the knock offs that you can find dime a dozen on eBay. None of them worked longer than 4 weeks.

For my Macbook I am using an external Hypermac battery (top quality).

The center of everything are my AA's. I'm using Panasonic Infinium AA's only. They have the eneloop technology build in. Just 2000 mAh, but for me the really rule. We tested them in a lab and the results blew me away.

3. Recharge early and often

On location I have at least my GP Powerbank Charger with me. It recharges 4 AA's in a matter of minutes. It also tells me if a battery is going to die soon. So I set this baby up somewhere on location. After shooting the first set I will recharge the batteries of my main speedlight - even if they are still nearly full. After the next set I will exchange the batteries of my 2nd speedlight and so on. So my strategy is to recharge faster than my shoot will eat up power.

Thanks to Jan-Marco Gessinger for the question.