This Chicco Pocket Snack Booster is half price at Amazon, down from £29.99 to £14.99 with free delivery. It's only the light blue colour which is at this price, the other colours are still over £30.
These booster seats are designed to be an alternative to a high chair, either for travel, for getting a baby used to sitting at the table, or for independent eating as a floor seat. They attach securely to your normal chairs, and are adjustable to three different heights for different dining tables.
If folds down flat when not in use, has a carry strap and handle, and is very lightweight too, so would also be a great solution for visiting friends and relatives as well as holidays.
It is suitable from 6 months to around 3 years of age, has a safety harness that can be removed for easy cleaning, and a removable tray for eating or playing.
Reviews are great, with some reviewers saying that they used this all the time rather than a full sized high chair because it saves so much soace. It's the fact that it's so light and portable that's appealing to me, as it would make going out and about with a baby or toddler that much easier.
Thanks to alameen25 @ HUKD