C.S.
for both my kids, their favorite was a little lion bought at toys r us & it has a little spin thing on its belly. they spin it & a light comes on & it plays a song with different verses. Awesome for car & shopping. "I am a lion, hear me roar, GRrrrr." my dad got it for my daughter & it was love at first sight.
My routine for both my kids to get them exercised uniformly was to switch it up all day long. Never longer than 20 minutes in one position. high chair for breakfast....floor...hip/lap...exersaucer.....floor.....hip/lap...bouncy........high chair...hip/lap.....crib...exersaucer........bouncy.......jumper roo......floor........swing.......hip/lap.......outside.........floor........highchair........hip/lap.............bath...........bed. have several floor areas even try a bumbo with tray if you have it. have different toys... I placed a huge quilt on the floor & each time I would lay them at a differnt corner. each corner has different toys & that makes me at least get in 4 floor sessions a day. The floor sessions strengthens more muscles it seems & so mine did seem to get tired of it quicker. also you can put a mirror in front of exersaucer I kids really seemed to enjoy that cuz when they look up someone is looking at them & usually smiling. gets you some time to get things done. I did use a carrier & vacuumed with mine & they loved it. to slightly wean her from hip/lap, then increase the time in which you respond to her fussing & I have found that with short attentions, they sometimes get distracted and they learn that they can be without you for 5 min., 10 min, etc.. & you still come back. Hope this helps....