your car has lost the throttle motor synchronization points, It can be recalibrated by a scan tool in under 5 minutes at a toyota showroom or any other shop who has such equipment.
The throttle motor does not need to be cleaned in normal service. The genuine platinum/iridium spark plugs are not for "awesome pickup" - they are for long life - (100,000 kms or more)
Dont spray carby cleaner on a HOT MAF sensor - it heats up itself to burn off any oil/dirt from it when you shut the engine down, If its weak or causing problems (check via scanner only) then you clean/test it or replace it.