What's the best baby product you've ever had?

[LekyatTinyTotsonTour]

I have just set up an online baby travel store and I'd like to hear from mums with their views.

Any products that made your life easy, like sterilising bags. Or good security items like buggy locks etc.

Also any products that sound great but don't work very well?

What should I be stocking in my store to make mums' life easy on holiday!?

Thanks

Inflatable baby bath, ideal for use in porcelain bath at home and great for travel - also doubled up as paddling pool on hol

That giraffe teether was worth the money.
Wooden rattles
Bouncers that vibrate.

Fisher Price booster seat is a really good highchair substitute. We used it from 6 months with no problems and have been delighted not to have had a highchair taking up lots of room. 3 seat height positions and a tray which is easy to attach and remove. At the lowest positon the baby can sit at the table... when that day comes. -best thing we've bought by far.