[thundereder9t8y]

For me, definitely Amazon echo. So good.

[Omega Samurai]

I'd say it's a tie between a cast iron skillet or a good pillow. Both are under $100 abs have both helped so much.

[thundereder9t8y]

Dude, a nice pillow make / break you.

[race7211]

Definitely a good quality pocket knife, something to carry around daily makes everything easier

[thsprppr]

Ergonomic keyboard, some can be very expensive but mine was under $100 and is absolutely brilliant. Helped so much with my carpal tunnel.

[Abcrobb]

Some free weights

[Chruglins]

Definitely some weights will improve your life a lot