Mine has got to be anything food related - particularly meal planning, shopping and cooking. I despise it! I'm a good cook but my god do I hate it. Unfortunately DH also hates it as well and I find splitting it very difficult - if DH plans I have no idea what recipe he's using (I have all my recipes in my head) and if I plan, I also have to shop and then DH has no idea how to cook it unless I write it down or use a recipe book to plan and shop, which takes even longer!
All other jobs I'm fairly happy to do and get a sense of satisfaction from. But not the food shopping 🙄
What is yours and why? And any tips for making it more bearable?