What you say wil work and is fine but it will probably work out cheaper to buy new stuff .
You have a slightly different frequency of mains in the US too, so that might cause problems on some things.
The dual voltage stuff will obviously be fine.
Do you mean electronics or electrics?
Most electronics are DC operated and transform voltage input internally, but voltage input will matter, whereas frequency will not.
These would be identifiable as being portable, operating on battery.
So all you would need for that is a multi output voltage battery charger, with 220 volt input.
I imagine if you have just moved to Germany from the states, you'll not have any heavy electrical equipment with you? Maybe hairdryer or curlers etc. You may find it's cheaper to buy new than purchase a transformer for these. As your frequency in the states is 60 Hz, running that equipment on 50 Hz means it will run slower.
I suppose I should believe the guy who is so specific about 50 Hz current driving equipment designed for 60 Hz making it run faster and burning it out if run at full 110 (actually, all your electronics are 110-125 and the nominal American voltage is 120+-5% at 60 Hz exactly) but I would have expected it to run slower in synch with the lower frequency and turning slower might over heat.
Also, not mentioned is that things which depend on line frequency - especially TV - won't work at all.
I suspect wifi won't and may not be legal and cell phone probably won't work or be legal.
It would have been better if you had researched before hand and only taken stuff that would work.
It is safe to use a step down transformer provided it has a circuit breaker to cut off power while transformer is overloaded. Count total wattage on all 110V device. Suppose it is 1000W ( or 1000VA ),then buy a transformer rated 1500W. If you want to power a 110V 60c/s drill bought from USA and use it again in Germany with step down power 110V at 50c/s. The drill shall not work well even burn down very quickly. It runs faster with 50c/s power. To make this drill without burning by 50c/s power, lower voltage into 100V shall do. Power frequency difference only affects device that contains AC motor.
I just moved to Germany from the us so all my electronics are 110.. I understand if its dual voltage all I need is a plug adapter.. With that being said what's the best way to hook all my other stuff up... Would it be to use a transformer lowering to 110 and then use a power strip that has no surge protection( as long as power strip total wattage is under transformer wattage) I just want to make sure this is safe and correct
