It is not about the budget. Many manufacturers here are in short supply of basic materials like pipette tips, centrifuge tubes, gloves, and deliveries take ~6 months... So we should come up with alternatives :)

You can find more here if you are curious:

https://www.nature.com/articles/d41586-021-00613-y

Dear Victoria Calatrava,

• The used pipette tips can be put in cetrimide solution (10%) for 24 h (If they had been used in special cases such as bacteria).
• Remove the solution and transfer them to the distilled water.
• Remove the water after 30 min and repeat it two or three times.
• Put them in fresh distilled water and sterilized them in autoclave for 20 min at 121 ˚C.
• At the end of the sterilization process, remove the hot water immediately and wash them with cold distilled water (In this way, the expansion of the top of pipette tip will be minimized and it retains its performance accuracy).
• Put them at room temperature to be dried.