How do I choose the right pallet size for my storage space?

I’ve been trying to organize my small warehouse space better, but I’ve run into a bit of confusion when it comes to choosing the right pallet sizes. I didn’t realize before that picking the wrong size could actually waste a lot of space or make stacking difficult. Right now, I’m using a mix of pallets, and it feels messy and not very efficient. Some of them don’t fit properly on the racks, and others leave too much unused space. I started looking online and came across some tips for selecting proper pallet sizes for storage, which made me realize that I might have been doing things the wrong way from the start. Still, I’m not fully sure how to apply those tips in a real setup like mine. My storage area is not very big, so I really need to make the best use of every corner. Has anyone here gone through a similar situation where you had to reorganize your storage using the right pallet sizes? How did you decide what size works best for your space and products? I feel like if I get this part right, it could make a big difference in how everything is stored and handled. Just looking for some simple advice from real experience before I make any changes.