I eat a lot of them just out-of-hand. They're great in the morning when you don't want something heavy. I also like to eat them when recovering from an illness. If grapefruit is too sweet when recovering from illness, then cucumber is a non-sweet fruit that hits the spot. More neutral than most foods.
If you want to preserve them a little longer, then try green boxes or bags. I keep produce far longer with these. Debbie Meyer is one brand. Do an internet search. Cucumbers won't last as long in the green boxes as most produce, but it will give you a few more days.