There’s a particular kind of disappointment that comes from opening your gym bag and realising you’ve forgotten something important.
Headphones? Still on the kitchen counter. Clean socks? Nowhere to be found. Water bottle? Sitting proudly next to the front door.
And then there’s the protein shaker you forgot to take out after your last session. We won’t talk about that.
No matter how long you’ve been training, everyone gets their gym bag wrong occasionally. Some mistakes are mildly annoying. Others can make you reconsider the entire workout.
Perhaps the most common is simply carrying too much stuff.
It starts innocently enough. You throw in your usual training kit, then add some lifting straps just in case. A resistance band might be useful. Better bring another T-shirt. Maybe a hoodie. A couple of snacks. Your entire collection of toiletries.
Before long, getting your bag into the locker becomes a workout of its own.
Unless you genuinely use everything you're carrying, there's really no need. Packing for the session you're actually doing keeps things lighter and means you're not digging through six months' worth of gym accessories every time you need your headphones.
Speaking of headphones, forgetting them deserves its own mention.
You can absolutely train without music. Of course you can. But when you're used to having your own playlist, discovering you've left your headphones at home can completely change the mood of a session.
Instead of your carefully selected training music, you're now at the mercy of whatever the gym happens to be playing. There's only so much motivation you can extract from a dance remix of a song you didn't particularly like the first time around.
Then we come to the shaker.
Making a protein shake after training is easy. Remembering to remove the shaker from your bag afterwards apparently isn't.
You finish your shake, throw the bottle into your bag and tell yourself you'll wash it when you get home. Then you get home, shower, eat and completely forget it exists.
A day or two later, you find it again.
Opening it becomes an act of courage.
A quick rinse immediately after drinking your shake can save you from most of the horror. Better still, take it out of your bag as soon as you get home. Once it's clean and completely dry, keeping the bottle assembled also means you won't arrive at the gym with the shaker but somehow without its lid.
Another classic mistake is treating the main compartment of your gym bag as one big storage space.
Clean T-shirt? In it goes.
Sweaty T-shirt? Same place.
Wet towel? Why not.
By the time you get home, everything has spent half an hour getting acquainted with your post-workout kit.
Keeping worn clothes in a separate compartment or small laundry bag makes a surprisingly big difference. More importantly, actually taking them out when you get home stops your gym bag developing its own permanent atmosphere.
The same applies to toiletries.
Most people only need one leaking bottle of shower gel to learn this lesson.
Putting shampoo, shower gel and other liquids into a separate wash bag takes seconds and could save your clothes, headphones and everything else you're carrying. Travel-sized bottles are usually more than enough for gym showers too, so there's little reason to carry a full bathroom cabinet around.
And while forgetting major items is annoying, it's often the small things that catch you out.
Socks are a perfect example.
They're tiny, weigh practically nothing and somehow manage to disappear precisely when you need them. Keeping a clean spare pair tucked into a side pocket is one of those boring little habits that suddenly seems brilliant when you need it.
Your gym bag can also become a graveyard for snacks.
A protein bar wrapper here. An old receipt there. A banana you packed earlier in the week and would now prefer not to investigate.
Emptying the whole bag once a week solves most of this. Take everything out, throw away the rubbish, wash what needs washing and put your regular essentials back.
It doesn't need to become another elaborate fitness routine. Five minutes is plenty.
Probably the easiest way to avoid forgetting things is to stop packing your bag from scratch every single time.
Keep the basics together. Your bottle, shaker, headphones, deodorant and whatever training accessories you regularly use can all have their usual place. Add fresh clothes and anything specific to that day's session, and you're done.
It also helps to think about what you're doing after the gym.
If you're heading straight home, forgetting your deodorant isn't exactly a crisis. If you're heading into the office, getting on the Tube or meeting someone for dinner, you might feel differently.
Gym bags don't need to be perfectly organised. They just need to contain the things you'll actually use.
And preferably not the remains of last Tuesday's protein shake.