Soxie: Are you that old??? You have a 25 year old daughter and a 22 year old son?
OK, well at your old age, obviously it will not impress your wife if you took the initiative to feed and bathe the kids. In fact, you could be arrested if you did that!
Heat guns to speed after bath drying are not considered romantic, so I would suggest that you drop that idea. However, you could put some bath towels in a hot dryer to warm them... that might impress her.
At this point in your marriage, pulling out all of the stops would be recommended:
Flowers
Candles
Romantic music
Etc.