There are many things you could consider, but they may depend on your budget and locations
If you always film from your bathroom, maybe a change of scenery could be nice, but that may mean scouting locations or renting places such as hotel rooms. And with that, comes the cleanup/protection which would drastically add to the production time.
Another thing you could try would be different (or multiple) camera angles, filming in slow motion or from above/below, but that again may require some investment of more equipment/tripods etc
If you're into story telling, you could create different characters (along with costumes) and scenarios that involve getting messy. For example, a "blackmail" scenario where your puppy is dognapped and a ransom note arrives telling you to cover yourself in something and film it and send to the dognappers or you'lll never see him again. Or a scene where you're making enough custard to feed the extended family and you "accidentally" fall into the bathtub as you're mixing it
Opening yourself up to suggestions here is always good, as here you will find potential customers, so if you can do something people are willing to pay for, perfect, but it should also be something you enjoy too. When play becomes work, it kills the magic a little
Good advice from ImSlaym. Especially when it comes to keeping it fun. If you're having a good time, your audience will follow you - even if it takes a little time to build it up!
Think about what the favourite things you like to see are that really entertain YOU and how you can best replicate those scenarios with what you have.
There's that old joke "we'll fix that in post (production)". But to some degree that's very true. Capture as much as you can so you've got plenty to play with.
Practise editing. If you are working with one model - or alone there are so many ways you can switch things up with editing. You don't need to speak dialogue in real time, you can cut it and get the best bits without the fluffs.
Also, you can set a scene with non-messy pre-ambles in a different place. Film yourself in your wam outfit out in the street, or another location.