Hi pinkladywales
A couple of years ago i went on my own to Zante and set a budget of £600 for two weeks self catering. i took £300 in Drach's and £300 in T/C's.. overall i didnt hold back on the spending and i needed to go to the cash point on the last day and withdrew £100 because i was running low.
I booked all my boat trips (4) around the island with the Olympic reps (if i had booked independant i could have saved myself £30) Total was around £120..
Didn't have a breakfast everyday but, i did eat a lot of fruit instead..
Met up with other trippers and had some really good nights out and every night we dined really well with drinks etc then hit the bar street..

i went off to smaller villages in the daytime and had some good light snacky lunches and had a beer or two with the locals

cheaper than in the resorts and quite often a plate of grilled fish and tomatoes gratis
daytime on the beach or swimming / snorkelling is free
i took a jetski out at at vasilikos bay £30 for 1/2 hour..
Hired a motor boat for a day to marithionisi island £80 shared between 6 and i left a healthy tip for the cleaner as she was brilliant and a thankyou for my rep as she was great as well..
********
Last year I got through about £1100+ two of us in two weeks..
and my holiday partner spent plenty as well..
we didnt set a budget on anything..
hired a jeep for a week..
we went horse riding..
went scuba diving a few times and did most of the above as well..
So if you set a budget you will spend less and it doesn't mean you'll be scrimping all through the holiday just go careful in the 1st week
i worked out i saved money by doing the boat trips as i was spending quite a lot in the nights but, with a boat trip i was in bed early (ish) for the early start..
paul..