Awhile back, you posted a hack that involved using a hotel coffeemaker to heat water for hot chocolate. I've got another one. You can use the coffeemaker in the hotel to heat water to make oatmeal. No need to bother with "instant oatmeal." Ordinary quick oatmeal works fine–mix it up and let it sit for a minute and breakfast is ready. For a toddler, 2 TBS of oatmeal to 4 TBS of hot water makes a good snack, or perhaps 3 TBS of oatmeal to 6 TBS of hot water if he or she is especially hungry.