Um, unfortunately I can’t comment on exactly how long things last. My memory isn’t good enough to remember how long anything lasts me lol. The serums last a long time for me, and the toner (at least the glycolic acid toner) lasts suuuuper long (esp in the larger size). Oh, and I need to stress this: what works for me may not work for u. I have gradually added things to my routine specifically tailored to my needs, which are likely somewhat different to urs.

How abt this? I’ll list the everything by my subjective “affordability”:

Affordable

• The Ordinary products (all very affordable and last a long time)
• Billie razor and whipped shaving cream (I dont wanna price this out—I just get them at my local Target since that’s the only place I can ever find the Ingrown Protection one)
• La Roche-Posay stuff (it’s a drugstore brand, but deffo on the more expensive side of drugstore, which is still very, very affordable)
• Cremo shaving cream $8 for 6oz
• Leaf Twig safety razor. Expensive to buy, extremely affordable to replace blades. Blades cost cents each, and u can use them like 5 times before u need to change them. It’s way cheaper in the long run than a cartridge razor. $109 up front for the kit including stand, blades, and used blade holder (u can ship it back to them to recycle the blades!). 50 blades (~250 shaves) is $15, at $0.30/blade. 200 blades (~1,000 shaves) is $40 at $0.20/blade. U don’t have to buy their blades; u can use any other safety razor blade!
• Paul Mitchell Extra-Body Sculpting Foam Mousse $30 for 16.9oz, which will last a really long time
• Kenra Platinum Dry Texture Spray 6 $25 for 5.3oz
• Batiste Light Dry Shampoo $9 for 3.81oz
• Nyx Marshmallow Smoothing Primer (u can get it bundled with the setting spray, too iirc) $14 for 1oz (will last a long time)
• Anua Heartleaf Pore Control Cleansing Oil (I use a LOT of makeup, including all over my neck, so I go through this pretty quick, but if u could get away with 2 pumps (light makeup), then it’s pretty affordable) $18 for 6.76oz (I’ve heard people recommend the Ma:nyo one instead; it’s the same price, but it has lavender oil and I’m allergic to lavender)
• Blue Lizard SPF 50 Mineral Sunscreen $16 for 5oz
• Most of the tools I use (hair dryer ($41), brushes, etc.). Only exception is the Ion Magnesium Flat Iron 1 Inch ($82) which is mid range for a flat iron, but performs quite well.

A little expensive

• Nécessaire The Exfoliant Bar $15 for 1 or $40 for 3
• Nécessaire The Deodorant $24 for 2.5oz
• RoC Retinol Correxion Line Smoothing Eye Cream $22 for 0.5oz (cheap for an eye cream, but u don’t get much—u only need a teeny tiny amount tho)
• Grace & Stella Energizing Eye Mask 48 pairs for $35
• DAE Mirage Mist Leave-In Conditioner (it lasts awhile tho) $30 for 5oz

Luxury/expensive

• Ouai Fine Hair Volumizing Shampoo and Conditioner (they do last awhile, but they’re $32 a pop for 10oz)
• Ouai Fine to Medium Treatment Masque (again, lasts awhile but it’s $38 for 8oz)
• Nécessaire The Body Wash $42 500mL
• Nécessaire The Body Lotion $52 450mL
• Colorescience Total Protection No-Show Mineral Sunscreen SPF 50 $68 for 2.8oz (works great under makeup)
• Colorescience Brush-On Sunscreen Mineral Powder SPF 50 $69 for 0.4oz (it’s a powder so it can go over makeup every 2 hours when I need to reapply)
• Glamglow Supermud Face Mask $42 for 3.5oz

Hope this helps a little bit! I’m afraid I really don’t know how long most of these things last, so it’s hard for me to comment on that lol.