That bothers me, as well.
About a dozen years ago (or so), I decided to get a bunch (a large box full) of automotive light bulbs on eBay, where I can get a box (of 10) bulbs for about the price of a 2-pack from a parts store (about $5-6 (US) for a card of two).
Example of a 1157 (taillight) bulb from eBay
https://www.ebay.com/itm/10x-1157-BAY15D-21-5W-Car-Reverse-Backup-Stop-Brake-Tail-Light-Bulb-White/173070706858?hash=item284bd168aa:g:dQgAAOSwxfdau0KR $3.40 (US) for a box of 10 (including freight).
There are four cars in my fleet that are daily driven: My ’77 Volare, ’86 Fifth Ave, ’97 Dodge pickup and wife’s ’02 Town and Country.
The ’77 and ’86 share a lot of same bulbs – but can’t say the same about the other two vehicles (which is a lot of bulbs to keep tabs on).
On a somewhat unrelated note, I bought a box of 194 bulbs (instrument cluster/side marker) bulbs on eBay about five years ago. It was a box of 100 (yes, one hundred) of clear Halogen 194 bulbs for about $10 (US). These were not incandescent bulbs that are normally used - but Halogen. What a HUGE difference on dash visibility using Halogen!
I highly recommend everyone install the Halogen dash bulbs in their dash!
Note: Halogen bulbs are brighter and use less electricity than what incandescent bulbs use – so a Win/Win by using them.
I didn’t see a 100-pack of Halogen 194’s on eBay (just now) but did find a 50-pack for $6.93 (US). including freight.
https://www.ebay.com/itm/50x-Clear-Halogen-Bulb-T10-Side-Marker-lamp-Light-194-W5W-12V-5W-Yellow/361231727588?epid=1761175743&hash=item541b16bbe4:g:96UAAOSwC19bABM8
BudW