Reddit mentions of Baby Wipes by bloom BABY | Unscented | For Sensitive Skin | Formulated for Diaper Area | Water-Based | Infused with Plant-Derived Vitamins | Hypoallergenic | Textured & Thick 8”x7” Wipes | 80 Count

A few things:

To start with, can we talk about ways to reduce the amount of grime getting on you? Because this is not inevitable. I have a pretty long commute, and I relube aggressively with a very persistent wet lube (Rock and Roll Extreme, which is probably the highest endurance high-performance wet lube), and it never gets on my pants or legs. What's actually happening to get you dirty?

That said, here's my recommended solution:

To start with, I'd keep a pack of baby wipes at your office. I recommend Bloom Baby Wipes. They come highly recommended, they're big, they're textured (which means they're way better at lifting up dirt), and they're really good for sensitive skin. They're also not expensive, so you can use a bunch if you need to. Good for wiping yourself down after a ride to get rid of sweat. As with any baby wipe, they'll dry out if you let them, so make sure to keep the whole container in a closed tub or big ziploc bag and stick it in a drawer out of the sun.

If you really want an emergency degreaser, there's a hack you can use. Use an alcohol-based lens cleaner. Here's a good one. It comes with a small sprayer and a big refill bottle. This probably seems like some no name bullshit brand, but it's actually a reputable company. Like Zeiss (a highly reputable lens company) used to sell this same cleaner, from this manufacturer, rebranded as one of their products. I carry the small spray bottle and use it for my computer screen and glasses, but if I really need to degrease myself, this will do it.

Note that most such alcohol-based cleaners are not good for your skin. Beyond just drying you out, they're sensitizers and can trigger skin conditions (this usually requires high concentrations and constant use). So use it to break up any grease your wipe can't handle, then wipe it all clean with a wipe, and maybe moisturize after that. This is a last resort hack, not something you should be doing all the time. I only bring it up because those spray bottles are tiny and will fit in your purse.

Speaking of something you can fit in your purse, you can buy standalone wipes which come in sealed packets, but they're kinda expensive. I keep a supply of Goodwipes as a backup. They sell them in both a big size for whole body wipes and a smaller size. There's also a pull pack, which I sorta don't recommend. It's way cheaper, but even though it's smaller than a pack of normal baby wipes, it's kinda too big for stuffing into a handbag. There's probably a brand out there that's better for cleaning, but I use these because my skin is extremely sensitive (like frequent contact allergy sensitive), and it's fairly gentle. Also not many brands come in individually sealed packets. If you want a cheaper hack, you can just stuff a few folded baby wipes in a good quality ziploc, squeeze the air out of it, seal it tightly, and stuff that in your purse. They should stay wet for a good while, and since they only cost a few cents each, it's no loss if they only last a few days.

Oh. Something related to your query but not quite what you're asking for. Buy a pack of disposable, heavy duty nitrile work gloves. Like actual work gloves, not the medical ones from the drug store. These are super good. Carry a pair to keep your hands clean if you need to handle your drive train during field repairs. When you're done, pull the gloves off from the base, and they'll turn inside out naturally, trapping the grime inside out. Pack the gloves out and toss them at work. The skin on my hands is soft enough that I basically can't torque anything by hand because it just slips, but these are textured and grippy, so these are also really good for me for wrenching at home too. They're also professional-grade, so they're really thick (why you want these instead of medical gloves), and they have a lot of cut resistance for disposable gloves.