So you have a laptop and need more space. Is your laptop just old with a small hard drive? Is it new with a small solid state drive? Or do you want to store a large library of music? Anyways it needs more disk space and I know where to get it. The only problem is that this is super easy.
Step 1: Requirements
Check that your laptop has a SD slot.
Step 2: Purchasing
Buy a 64gb SD Card. Check ebay mine was only $15 that is cheap per gigabyte.
Step 3: Shipping
Wait for the card to be delivered.
Step 4: Installation
Unwrap the card then Insert the card into the SD Slot.
Step 5: Tape
When card is full buy new card and role of tape. Insert new card and tape old one to the laptop.
Using this strategy your laptop can have infinite memory.