There are some horse themed YouTube channels that do "grooming kit tours." I'm way too awkward to do one on camera but wanted to share my grooming box anyway :)
Grooming box: I have the Little Giant grooming box in hot pink, I got it from Jeffer's Equine, they have the widest selection of colors I have found and shipped my box for no extra freight cost
Brush compartment: I keep all my brushes in here, I have the Oster hard brush, curry comb, and hoof pick, as well as a mane/tail brush and a pair of scissors which I use for Speck's bridle path since he is not a fan of the clippers.
Detangler/goop compartment: The every day "goop" compartment. I have Cowboy Magic detangler, which is an absolute essential for Speck's long mane. I also have Hoof Heal which I sometimes use to add moisture to feet when the weather is dry (good feet really come from the inside out but I like this stuff anyway because it at least "feels" like I'm doing something). The white/purple bottle is Tail Tamer Mug Balm fly repellent/sun screen for faces, I usually don't go for natural type fly repellents but this stuff is the ONLY thing I have found that keeps deer flies away from ears on trail rides, and it has built-in sunscreen, sweet!
Fly spray-The purple spray bottle has the Repel-X concentrate mixed at the higher recommended dilution. This is an effective fly spray at a good price for the concentrate. Under the fly spray bottle I have my Blocker tie ring for the trailer.
Boots/polo wraps: Not sure why these are in here since I only use them for ring work and only ride in the ring maybe twice a year. I have the Equi-fit T boots with velcro closures for Frosty as well as a pair of camo polo wraps with pink velcro from Whinney Wear.