Here are some suggestions for future updates:
Admin Product Table:
Make ID column wide enough for at least double-digit numbers
Price column does not need to be so wide (will take $1,000,000,000.00)
Allow thumbnails to be full width of product.
CSV download: download all product data (e.g. multiple categories)
Search by multiple sub-categories, with checkboxes.
Add compact listing option. Currently only 6 products per page. Could take a while to look through 100 products.