Any cheap repair options for an HP laptop after a shampoo leak in NYC?

Stop trying to turn it on or charge it for now. Liquid can cause shorts and corrosion, and shampoo can leave residue even after it looks dry.

Tell a repair person exactly what leaked and that the laptop was powered on afterward. Ask for a liquid-damage inspection and cleaning estimate before agreeing to any repair. If you're comfortable opening laptops, disconnecting the internal battery is a sensible first step, but don't force the case or handle a damaged battery.

Try asking local independent repair shops and electronics hobbyists whether they can inspect it for free or just charge for parts. Explain your budget upfront and ask what the diagnostic fee is, whether it applies to the repair, and whether they'll contact you before spending anything.

A volunteer may be able to inspect and clean it without being able to replace tiny damaged components, so ask what kind of work they can actually do.

Get an estimate before traveling a long way. Liquid damage can be expensive enough that a replacement laptop makes more sense. If the files matter, ask separately about recovering the storage even if the laptop itself can't be repaired affordably.

Cleaning it yourself is an option if you have the right tools and are comfortable disassembling it. A small Phillips screwdriver, a plastic opening tool, a soft brush and 90% or higher isopropyl alcohol are typical supplies. Disconnect the battery first and don't reconnect power until everything is fully dry.

Shampoo residue may be difficult to remove, and cleaning won't necessarily fix components already damaged. If opening it feels risky, a low-cost inspection is the better bet.