Sophie Kinsella The shopaolics series. They're is 6 of them. Make sure you read them in order. Absolutely lighthearted and so funny.
They are about a woman in her 20s and the scrapes she gets in over money. She meets the love of her life in the first book. Without giving too much a way, the book series goes something like this:
Diary of a shopaolic
Shopaolic gets married
Shopaolic has her baby
Shopaolic and her daughter
Shopaolic and her sister
Shopaolic abroad
Think a couple of them might be the wrong way round however that should help Google them for book order.
Also Maeve Binchey: lightweight gently humerous at times, stories set in Southern Ireland about various different communities. As you read each one you can see the overlaps of other characters being bought in to the play from other books. Lots of them too so they are books you can carry on. No particular order as you can pick up on the books the various characters from other books
Enjoy your holidays