Is it not enough that Susan's eldest child wakes her up before the alarm clock to ask if he could invade the sanctum sanctorum of her purse to remove five dollars for lunch? 
No, it's not enough.

Must he also phone while she's in the shower to request that she divert her commute and hand deliver to the high school the five dollars he left on the table?
Yes, he must.

Susan took the five dollars and wrapped it in a piece of computer paper because she forgets every single time she is in a store that sells envelopes, to buy envelopes. She took a thick Sharpie marker and addressed the slim package thusly;

Mommy and Daddy wuv (name of firstborn removed for privacy) 

Then she decorated it with sparkly butterflies and race car stickers and dropped it off at school.