I am not a single father, but i work from home and take care of my 2 y/o daughter while my wife works a regular 9-5. I carry a 5.11 Rush 12, 24, or Moab 10 everywhere i go and also keep a cooler in the truck. I keep a small electronic toy, a barbie sized doll, and crayons in my bag for her. I've found that she loves those battery operated light sticks so i have one in the bag to keep her busy, especially on night time adventures. One thing i have learned with my daughter is once i find that she takes to a certain toy i sneak it away from her and keep it in the truck or backpack. This way its like a new toy again when we are out and she doesn't get bored with it so quickly.
I think she's a bit young. A whistle will be a toy for her, and there could be many false alarms. A friend of mine was in lazing in bed one weekend with his wife and two-year old daughter. They let her play with their cell phone, and she happily punched buttons until the police showed up in response to her innocent 911 call. They gave her a toy phone after that...
Sister in Law gave our daughter a Phone that had the sim card removed. Battery freshly charged, and Police on the doorstep. Many people do not know that all cellphones if they have a charge can dial 911.
We always carried Tylenol and\or Advil as well as some allergy medicine of some sort. A change of clothes if you have room.
Wet Ones single use wipes! I have a 3 year old and I've been carrying them since she was 1. We always have baby wipes but sometimes your kid picks something up off the ground of what not and you are not anywhere near a sink, using these on their hands will help a lot in those situations especially if your kid is a thumb sucker like mine!
When my son was little i had a suburban with a box of supplies lol Plus his normal bag with tons of stuff He was a urper lol. Every time he ate atleast 3x's that came up Not sure how he ever gained any weight lol Had lots of clothes. Burp towles. Diapers and whipes Some plastic giant keys he loved lol He was pretty easy to maintain Just yacked alot Also had shirts for me and his mom in the truck cause We were the ones to get the urpin upon lol
Been there still doing the single dad thing, I carried.. Clorox wipes (no bleach) for carts, tables, changing stations Baby wipes for the baby Hand sanitizer for me Diapers, changing pad, extra set of clothes, zip lock dump bag for the dirty ones (clothes or diapers) Bibs, couple of binkys, various toys, crayons, etc. Snacks, drinks (couple in bag for the quick fix) keep extra in vehicle I added to my normal fak.. Baby Tylenol and delsym I'd suggest a few movies on an ipod or smartphone for distraction.. My daughter loves veggietales... There are converters for a pc to convert it to phone formats
So here is what I carry in my back pack which always goes with me. I leave it in the car sometimes it gets heavy. Water bottle , sippie cup with straw , diapers about 6 - 9 , wet wipes in the small plastic case and some in a Ziploc for my cargo pockets , 3 blankets. Beanie , mittens ,jacket, hand warmers. Change of clothes in a Ziploc so dirty clothes can be exchanged , Clorox wipe , hand sanitizer , chap stick , spoon , bib , table toppers. Snacks ... I think that's it. Its a lot so I usually leave it in the car and take what I need.
Instead of going with what you want, go with what you need. Im a single father yet my youngn is 6 1/2. She naturally carries things with her anywhere and everywhere simply because I do. She may have a pink purse, yet its filled with keys, flashlights, pens, pencils, paper, a multitool( cheap Stanley one ), some change, and god knows what else. For a 15 month old, just go with what they need, the necessities. Diapers or training pants, wipes, pacifiers if need be, snacks, extra change of clothes is a must, bandaids, small toys to keep them occupied and some formula/juice/water. Oh and burp pads, can never have enough of em. Youll learn what you need and can do without as time goes on, yet start with the basics. When you need something you dont have, add it into the mix. If you dont use something thats carried daily, swap it for something more useful or just do without.