I agree with most everyones posts on here, and just wanted to give my view as someone raised by a very poor single mother.
My mom is really creative and found ways to work from home (sewing, painting, astrological charts) to spend more time with me. She read to me constantly, as did my grandparents when I stayed with them, and I learned to read very quickly, which was a great source of entertainment up through my teen years. There were also lots of art projects- painting, clay, decorating rocks (with paint and sequins....could entertain me for HOURS...), writing stories and comics, making paper dolls, etc. Now at 25, Im still a crappy artist, (didnt get the natural artistic ability from mom I guess!) but I remember how much fun I had and how I never felt like I was missing out.
Also , instead of expensive gifts for birthdays, I got really fun, elaborate, themed (but cheap, as everything was bought at a dollar store or similar place) parties with many friends. Fun party games like "pin the mole on Cindy Crawford" and supermodel themed goodie bags were a hit with my girlfriends, and everyone talked about how I had the coolest mom ever!
I guess my point is, I never knew we were poor until after I grew up
I think all the things my mom did for me mean a lot more to me now that I knew how poor we were and how much she struggled financially, too.
Your kid/s will remember experiences, and time spent with you, not how much things cost, or what theyre not doing. Some kids are so spoiled now, and some parents so lazy- its so easy to plop a kid in front of the TV for hours, but what memories are they taking with them then?